Bug Fixes in R2025a Prerelease

The following software and documentation bugs are considered resolved in the prerelease. The bugs listed below may be of interest to customers, based on general use of our products. Return to this page for future updates.

 

Available in R2025a, Update 3 Prerelease

Product Record Bug Summary
Deep Learning Toolbox 3496654 Previously quantized networks incorrectly retain quantization information, effecting network output
Deep Learning Toolbox 3501377 Executing gradCAM on a quantized DAGNetwork returns incorrect results
DO Qualification Kit 3492618 Restarting MATLAB clears settings that you define prior to executing the tool-specific qualification tests
DSP System Toolbox 3485749 Changing spectrumAnalyzer MeasurementChannel parameter does not change the results of getMeasurementsData
Embedded Coder 3401342 Inconsistent simulation and code generation output for model that contains a Stateflow Chart with certain configuration and directly connected to a  Vector Concatenate block inside a For Each Subsystem block.
Embedded Coder 3413701 Simulink might crash when building a model if a subsystem name begins with  "\" (backslash).
Fixed-Point Designer 3482853 MATLAB Function blocks outside of selected Subsystem Under Design report warning and errors during conversion in Fixed-Point Tool optimization workflow
HDL Coder 3402939 Simulink simulation may fail when HDL FIFO block is connected to Data Type Propagation block
HDL Coder 3487480 Discrete-Time Integrator block with floating point inputs generates incorrect HDL code when Show saturation port option is enabled
HDL Coder 3511578 Incorrect latency generated for the model that uses the mixed native floating point and AMD floating point libraries
MATLAB 3413389

Experiment Manager exports incorrect results for custom training if columns are added during training
MATLAB 3425246 MATLAB crashes when a function call is made on a deleted COM object
MATLAB Coder 3481247 Format property of MATLAB duration that is retrieved from a dictionary might contain uninitialized memory
MATLAB Coder 3488647 Dictionary that uses structures or cells as keys
MATLAB Compiler 3288786
Excel Add-ins fail with ClassFactory automation error on 64-bit Excel
 
Simulink 3096249 Signal Editor Interpolate data parameter value not saved when changed in Subsystem Reference
Simulink 3461464
Incorrect simulation result with runtime Variant activation when Parameter Writer block has Validate parameter set to off
Simulink 3477699 Protected models from previous releases might crash MATLAB
Simulink 3493952 MATLAB crashes if S-Function throws exception while executing mdlSetDefaultPortDimensions
Simulink 3495854 Simulink might crash for model with For Each subsystem that contains masked subsystem
Simulink 3512903 Multi-Port Switch block errors for unbounded variable-size arrays of buses inputs
Simulink 3517840 Model with Reinitialize, Reset, or Terminate Function block in For Each subsystem might produce incorrect results
Simulink Design Verifier 3342245 Compatibility check fails when a model contains inactive variant choices that include Model blocks with buses at the interface

 

Available in R2025a, Update 2 Prerelease

Product Record Bug Summary
Embedded Coder 3434837 Incorrect code might be generated when data reuse occurs between 1D array and multi-dimensional array that preserves dimension
Embedded Coder 3503672 Generated code uses incorrect SIMD intrinsic functions
HDL Coder 3460153 Task 4.4 Program Target Device in the HDL Workflow Advisor fails with an error message when the RFSoC target platform is not connected to the host PC. 
Simulink 3456109 Reciprocal block output in normal mode differs from output in accelerator mode
Simulink 3491684 The UserData property of a block may not be serialized in a model file with linked blocks.
Simulink 3502542 Simulink.AliasType generates NaN value for Discrete State-Space block
Simulink Design Verifier 3366535 Simulink Design Verifier Analysis for generated code might generate incorrect answers for objectives impacted by parameters with ImportedExtern storage classes
Simulink Fault Analyzer 3501471 Faults on Subsystem Reference Block ports disappear after reopening the model
Simulink Fault Analyzer 3505966 Simulink.fault.enable fails if the input is a mix of Simulink and Simscape elements

 

Available in R2025a, Update 1 Prerelease

Product Record Bug Summary
Simulink 3145717 Simulation throws an error "Unsupported pointer to function type" for the C Function block
HDL Coder 3154884 Generated HDL code for Sqrt block that has fixed-point input may have simulation mismatch.
Requirements Toolbox 3343181 Verification results cannot be retrieved in the case when main and reference projects exist, and from the scope of the main project, the test results file or artifacts in the reference projects are accessed.
Embedded Coder 3355649 Using storage classes with reusable subsystems might generate incorrect code when the Pack Boolean data into bitfields model configuration parameter is selected
HDL Coder 3401937 Unable to edit the native floating-point settings in the configuration parameter dialog box when you select the AMD floating-point vendor-specific library
Simulink 3413688 MATLAB might crash when simulating model with model reference containing Discrete State-Space block using large A, B, C, and D sizes
Simulink 3436530 Rate Limiter Dynamic block might output incorrect results before reaching saturation when simulating with continuous time input signals
HDL Coder 3438280 Internal error occurs when generating HDL code for Discrete Time Integrator block.
Simulink PLC Coder 3441183 Trigger event variables are not updated correctly in a For Each iteration context.
AUTOSAR Blockset 3447716 Data dependency violation in RTE call for an IRV write when AUTOSAR classic model contains Sine Wave block feeding Unit Delay block
Simulink Check 3449215 Model Testing Dashboards do not update test results when current directory is outside project root
Automated Driving Toolbox 3452811 Simulink actor behavior model that simulates vehicle without wheels in RoadRunner Scenario fails in particular case
Embedded Coder 3458170 Incorrect results might occur for models containing global Data Store Read/Write blocks and referenced models
Simulink 3461942 Simulation and generated code mismatch when base workspace variable is accessed using global data store
Stateflow 3464373 Stateflow throws a SaneConditionalExprs violated error when generating code for a chart that calls built-in functions
Simulink 3465565 Event Listener block in a library model might cause MATLAB to crash during model compilation
Stateflow 3467331 duration operator produces invalid simulation results in referenced models
Embedded Coder 3468398 Simulink crashes during code generation for a model that contains connected Switch blocks inside triggered and nontriggered subsystems
Simulink 3479106 While running a simulation, a Rapid Accelerator standalone executable might crash when binaries from a different MATLAB version are on the path
MATLAB Coder 3482204 xcorr function when at least one input contains nonfinite values
C2000 Microcontroller Blockset 3484873 Booting from flash does not work for CPU2 in the TI F2838xD device after power cycle
HDL Coder 3487404 Assertion hit when generating HDL code for a Simulink model with Mux and Demux blocks which also uses Clock-Rate Pipelining
MATLAB Coder 3489677 gcd function when first input is 0 and second input is intmin
Stateflow 3490072 Using the this identifier in a MATLAB function may cause a crash
HDL Coder 3494069 Internal error could occur during HLS code generation when there are multiple division operations with large fixpt types (> 53 bits) having same bit width.

 

Available in R2025a Prerelease

Product Record Bug Summary
5G Toolbox 3453111 “Evaluate Performance of Cell-Free mMIMO Networks” example encounters an error
Aerospace Toolbox 3307758 Linear matrices generated by linearize and staticStability methods for imported JSBSim aircraft contain only zeros
AUTOSAR Blockset 3277905 Software address method specified on a runnable using code mappings is not applied on functions generated for Stateflow charts
AUTOSAR Blockset 3306850 Generated code for AUTOSAR classic model that contains a root outport mapped to ImplicitSendByRef might be incorrect
AUTOSAR Blockset 3334815 Generated code for AUTOSAR classic model that contains a Switch block might be uncompilable
C2000 Microcontroller Blockset 3302304 No conflict error thrown for multiple instances of ADC block using different ADC resolution on TI F2838x
C2000 Microcontroller Blockset 3465546 ADC blocks do not support differential mode in F28P65x target
C2000 Microcontroller Blockset 3484873 Booting from flash does not work for CPU2 in the TI F2838xD device after power cycle
Control System Toolbox 3408625 allmargin can misdiagnose closed-loop stability for some discrete-time systems
Curve Fitting Toolbox 3444992 Curve fitting and surface fitting with weights lead to incorrect results
Database Toolbox 3402199 Database Explorer unable to connect to ODBC data sources
Deep Learning HDL Toolbox 3223145 Linux Image boot failure on Altera Arria 10 SoC development kits
Deep Learning HDL Toolbox 3344328 Error with Deep Learning Compiler when utilizing a network with both imageInputLayer and featureInputLayer.
Deep Learning HDL Toolbox 3356479

int8 data type bitstream build  fails when the dlhdl.ProcecsorConfig FC module is turned off
Deep Learning Toolbox 3303541 Cannot export Experiment Manager result that contains cancelled trial
Deep Learning Toolbox 3317254 Loading a neural network that contains an addition layer can be at least 2x slower than in R2023b
Deep Learning Toolbox 3353050
Experiment Manager cannot restart experiments initially created and run in releases prior to R2024a
Deep Learning Toolbox 3357409 trainNetwork errors when training a network with a nested layer or nested network
Deep Learning Toolbox 3431772 Incorrect predictions on CPU after you update state property of a dlnetwork with LSTM or BiLSTM layers
Deep Learning Toolbox 3455668 Making predictions on the CPU crashes MATLAB for some network architectures
DO Qualification Kit 3311779 In Simulink Coverage kit, the model coverage filter file used in the test model SLBscBlks_Ovflw_FltrByInstnc_Jstfy.slx differs from what is mentioned in the trace matrix.
DO Qualification Kit 3332347 Requirement ID SLT_AST_xxx needs to be replaced by SLT_ASR_xxx in the trace matrix
DO Qualification Kit 3339785 Requirement ID "SLREQ_VER_JFD" incorrectly contains two definitions for the requirement.
DO Qualification Kit 3339790 Spacing issues in Polyspace Test requirements PST_CC_ SC_COMP and PST_API_COV_INSTRUM
DO Qualification Kit 3339791
Bidirectional trace issues between the TOR and Trace Matrix are fixed in Simulink Coverage artifacts
DO Qualification Kit 3343066
Bidirectional trace issue for ID 'MC_SL_ToWorkspace' is corrected for the SLCOV kit
 
DO Qualification Kit 3360515 Rerunning tests for mathworks.hism.hisl_0070 causes a Simulink Check kit failure
DO Qualification Kit 3369331 TQP for TQL-5 tools incorrectly references 10.2.5 and 10.2.6 sections from DO-330
DO Qualification Kit 3370745 Incorrect references in the qualification summary reports generated for some TQL-5 tools
DO Qualification Kit 3380362 The Tool Artifacts section in each tool-specific TQP incorrectly states that the applicant must review all tool-specific artifacts in the DO Qualification Kit, including tool documentation.
DO Qualification Kit 3384345 TQP for Polyspace Code Prover, Polyspace Bug Finder and Simulink Code Inspector reference incorrect names for Independence Analysis documents
DO Qualification Kit 3389510 Simulink Code Inspector Tool Qualification Plan provides incorrect names for trace matrix files
DO Qualification Kit 3413754 DO Qualification Kit for Simulink Check sporadically reports a false positive for test case verifying the output of Model Advisor check mathworks.hism.himl_0004
DO Qualification Kit 3414814 False-positive results in Simulink Test Kit due to the presence of dots in path
DO Qualification Kit 3414824 Simulink Test kit execution reports a false positive when the Machine Name doesn't exist in the user generated Simulink Test report
DO Qualification Kit 3450612 Simulink Coverage can produce false-positive qualification results depending on date formats shown on the report
DSP System Toolbox 3017429 Signals plotted using timescope MATLAB object may experience loss in signal fidelity under certain conditions
DSP System Toolbox 3094883 Horizontal zoom or autoscale on Spectrum Analyzer block changes spectral content if input is fixed-point
DSP System Toolbox 3389897 Usage of timescope object with MATLAB compiler fails with a license error
DSP System Toolbox 3412196 Time Scope TimeDisplayOffset does not apply correctly if an input signal has more than 1 channel
Embedded Coder 2338515 Code fails to compile when a model references multiple Bus types having identical properties
Embedded Coder 2846315 Generated code might contain violations of MISRA C:2012 Rule 19.1 and CERT C: EXP43-C
Embedded Coder 2922330

Code generator ignores sender and receiver mappings that use during-execution or outside-execution communication if the dictionary default mapping is direct-access
Embedded Coder 3172505 SIL/PIL and normal mode simulation results might differ when generated code contains mdlEnable entry point and fast restart is enabled
Embedded Coder 3231187 MATLAB might crash when generating code for model that contains Interpolation Using Prelookup block with symbolic dimensions
Embedded Coder 3282427 Incorrect results might occur for models containing Unit Delay and State Writer blocks
Embedded Coder 3286065 Code generator for AUTOSAR classic model might incorrectly place assignment of non-scalar global data store to local variable
Embedded Coder 3287034 C++ code generation might not create access functions or cause MATLAB to crash when model contains nonvirtual Bus Element blocks
Embedded Coder 3324079 Error "cg_assert(!containsRenamedNamedType(inType))" when generating code for model containing MATLAB Function block
Embedded Coder 3324767 Generated code for AUTOSAR adaptive model that provides method implementation might result in incorrect code
Embedded Coder 3325052 Generated code from protected model fails to compile
Embedded Coder 3343016
Incorrect results might occur for a model that contains a referenced model with a feedback loop containing vector signals
Embedded Coder 3343278 Code generator incorrectly omits service interface header file includes from code generated for nonvirtual subsystems configured with nonreusable function packaged in separate files
Embedded Coder 3346362 Models with S-Function block having the enhanced TLC block interface enabled, with Use memcpy for vector assignments and block I/O optimization configuration parameters enabled, might generate incorrect code
Embedded Coder 3347892 Models with S-Function blocks that have enhanced TLC block interface enabled might produce incorrect code when they are within For Each Subsystem block that uses partition width in powers of 2
Embedded Coder 3378763
Incorrect SIL/PIL simulation results when a data store memory is present at component interface and signal logging is enabled on a signal with specific type of sample time
Embedded Coder 3379383 Invalid array indices generated for model with S-Function operating on data that preserves dimensions
Embedded Coder 3380743 Models with S-Function blocks that have the enhanced TLC block interface enabled and use a Bus Selector block that selects a matrix-type field, might generate incorrect code
Embedded Coder 3387979 MATLAB crashes during A2L file generation for model with signal driving control port block in library subsystem
Embedded Coder 3404246 Models with S-Function blocks that have the enhanced TLC block interface enabled might produce incorrect code when mask parameters pass data types that differ from those specified in the S-Function
Embedded Coder 3404418 CRL block replacement with pointer type DWork may generate incorrect code for Neighborhood Processing Subsystems or For Each Subsystems
Embedded Coder 3407342 Extra initialization code might be generated for root inport connected to an Initialize Function subsystem mapped to an unstructured storage class created using Embedded Coder Dictionary
Embedded Coder 3413883 Models with Neighborhood Processing Subsystem block might produce incorrect Halide code
Embedded Coder 3414942 Simulink models with Neighborhood Processing Subsystem block might produce incorrect Halide code
Embedded Coder 3419440
SIL/PIL and normal mode simulation results might differ numerically when std::array type signals are logged
 
Embedded Coder 3436036 PIL simulation with connectivity customized using Target Framework produces execution-time profiling error even if profiling is not enabled
Embedded Coder 3451339 Incorrect results might occur for models containing Data Store Memory blocks with non-zero initial values
Fixed-Point Designer 3060197 Function approximation with lookup tables does not error for stateful subsystems
Fixed-Point Designer 3287082
Incorrect numerical results from fixed-point conversion of expressions using pow2 
Fixed-Point Designer 3444741 Non-Square Jacobi SVD HDL Optimized block errors or ignores sample time settings when sample time is not equal to 1
GPU Coder 3308321 Function partially writes to global variable on GPU
GPU Coder 3340869 GPU acceleration by using Simulink Bus data might produce wrong answer
GPU Coder 3363887 Entry point function with GPU input partially writes to global variable
GPU Coder 3409104 Using variable named warpSize in a parallel reduction loop
HDL Coder 2875876 HDL Coder "Setup Time" parameter may be updated when dependent parameters updated, and Configuration Parameters window is closed and reopened.
HDL Coder 3152537

HDL Coder does not generate the DUT port for the tunable mask parameter.  
HDL Coder 3284644 Clock-Rate Pipelining usage with Distributed Pipelining can cause validation model mismatches in the presence of hierarchy or non-zero initial values on design delays
HDL Coder 3298789 Clock-rate pipelining on a Rate Transition block that upsamples the input signal may ignore a non-zero initial condition
HDL Coder 3304111 Internal assertion encountered for model that uses clock-rate pipelining
HDL Coder 3304873 Generated model may be incorrect when generating HDL code for a model containing a Shift Arithmetic block with a vector shift value
HDL Coder 3321415 Error occurred while running synthesis in the Generic ASIC/FPGA workflow when the target language is SystemVerilog and the synthesis tool is Cadence Genus
HDL Coder 3323271 Lookup Table(n-D) block with fixed point inputs and table data type setting as 'double' generates incorrect HDL code
HDL Coder 3332025 Bit shift operators lack sufficient default data types in float-to-fixed conversion
HDL Coder 3334496 Internal error may occur while generating code from Shift Arithmetic block when Binary points to shift parameter is set from workspace
HDL Coder 3352581 Cannot change "PackingMode" for AXI4-Stream Interface in HDL IP Core Generation Workflow
HDL Coder 3353697 Upstream optimizations cause validation model mismatches due to delays with non-zero initial values
HDL Coder 3354957 Incorrect Bitstream generation in reference design workflow for Microchip Libero SoC Tool 
HDL Coder 3358188 Reference design parameters are not properly loaded in HDL Workflow Advisor
HDL Coder 3362129 An error exists on simulating the HDL code generated from a Subsystem containing pipeline delays with matrix of boolean inputs and turning on the 'MapPipelineDelaysToRAM' parameter.
HDL Coder 3363079 Register utilization details are absent in the resource summary table when using the IP Core Generation or Generic ASIC/FPGA workflow for Versal devices.
HDL Coder 3363238 SynthesisAttributes property value set on the Delay block is not considered when UseRAM parameter is enabled
HDL Coder 3371862

HDL Workflow Advisor errors out in Task 1.2 Set Target Reference Design when targeting RFSoC examples and using Xilinx Vivado 2023.1 as a synthesis tool. 
HDL Coder 3377861 Enumerated name present in multiple enum types when generating HDL code from a model containing multiple Stateflow charts
HDL Coder 3391181
Incorrect implementation of saturate block for array inputs in mixed native floating point and vendor floating-point mode
 
HDL Coder 3392939 HDL Workflow advisor errors out in step 4.4 Program Target Device when targeting RFSoC examples and using Xilinx Vivado 2023.1 as a synthesis tool.
HDL Coder 3405099 Mapping a design delay to external memory using the frame-to-samples optimization in HDL Coder may result in incorrect code
HDL Coder 3406956 Unclear error when mapping multiple vector ports to AXI4-Stream interfaces with "SamplePackingDimension" set to "All"
HDL Coder 3408257 Delays with non-zero initial values produce incorrect results in frame-to-sample
HDL Coder 3413206 Lookup Table(n-D) block with fixed point inputs may generate incorrect code when Saturate on integer overflow block parameter is enabled
HDL Coder 3418182 When generating HDL code using the frame-to-sample optimization, the hdl.iteratorfun function produces incorrect code if the first input is 3D
HDL Coder 3418421 HDL Coder-related error when opening non-active configset for a model 
HDL Coder 3427131

Assertion message in MATLAB functions with nested loops with at least 3 levels of nesting when loop streaming is on 
HDL Coder 3434749 VHDL is incorrectly generated instead of Synthesizable SystemC in the MATLAB to Stratus HLS GUI workflow.
HDL Coder 3449106

Enabling "Data Logging" may cause an internal assertion error during HDL Coder Testbench generation
HDL Coder 3455224 Fixed-point data type overflow/underflow can cause incorrect hardware output results in Simscape hardware-in-the-Loop (HIL) workflow
HDL Verifier 3476748 In a free-running FPGA-in-the-loop simulation, if a negative value is sent to a control data port, it is converted to zero.
IEC Certification Kit 3356416 IEC Certification Kit for Simulink Check sporadically reports a false positive for test case verifying the output of Model Advisor check mathworks.hism.himl_0004
IEC Certification Kit 3380397 Measures in Embedded Coder TQP document might indicate a restriction on Polyspace version used to check MISRA compliance of generated code
IEC Certification Kit 3431700 IEC Certification Kit for Simulink Test might fail to execute when running multiple qualification modes sequentially
Image Acquisition Toolbox 3451306 getdata function errors while acquiring metadata using the gentl adaptor
Instrument Control Toolbox 3386522 UDP Send and UDP Receive blocks do not obey Byte order parameter setting
MATLAB 1382373 MATLAB for macOS crashes when certain screen events occur
MATLAB 1797911 Text fields in a MATLABWindow application on some Linux desktop environments do not allow text entry
MATLAB 2795585 Incorrect layout when running a 2-panel or 3-panel responsive app
MATLAB 3226733 MATLAB crashes creating multiple USB webcam objects
MATLAB 3291220 Clicking the Run Section button from the MATLAB toolstrip to run a function file with a parfor loop within it leads to a MATLAB crash
MATLAB 3293694 Executing clear all can make certain Python modules unusable, leading to the error "no module or function".
MATLAB 3294222 MATLAB errors when disp, display, or details is called on a matlab.metadata.EnumerationMember instance
MATLAB 3336761 MATLAB shows Git LFS-tracked files as modified when switching branches
MATLAB 3338765 Passing invalid property name for COM interface to set function crashes MATLAB
MATLAB 3339274 UI components might appear clipped or misplaced when Windows accessibility text scaling is greater than 100%
MATLAB 3364401 MATLAB crashes when running findobj in AppDesigner apps
MATLAB 3367973 In MATLAB Online, pressing the Esc key when a quick access toolbar drop-down menu is open does not return focus back to the parent button
MATLAB 3387403 ismember returns error for some complex integer inputs
MATLAB 3397846 Scalar values in the fields of a structure array may be incorrectly displayed with square brackets
MATLAB 3419133 readtable does not support reading URLs containing the # or %23 characters
MATLAB 3436796 Classes that customize the load process using matlab.mixin.CustomElementSerialization may not perform customization correctly and therefore may not load a serialized property correctly
MATLAB 3454346

Wrong result from pagesvd for some cases where the pages have more columns than rows
MATLAB 3456212 Multi-level indexing that begins with dot on an object that inherits from both dynamicprops and matlab.mixin.indexing.RedefinesDot errors.
MATLAB Coder 2498090 Read operation of a System object property in resetImpl method might produce different answers in generated code and MATLAB if the property has an initial value
MATLAB Coder 2510948 Missing CRL replacement in generated code for matrix multiplication with transposed inputs
MATLAB Coder 2929616 Source MATLAB code uses aliased nested handle objects with properties that are only assigned on some computation paths
MATLAB Coder 3288767 GPU Coder generates GPU kernels with unexpected undefined behavior
MATLAB Coder 3291900 Logical operators | and & with nonscalar operands in an if or while statement
MATLAB Coder 3304088 Logical operator | with operands of incompatible sizes in an if or while statement
MATLAB Coder 3311135 Code generation causes MATLAB crash that has stack trace beginning with CGI::PointerConstImpl::write
MATLAB Coder 3319956 Recursive functions with multiple outputs
MATLAB Coder 3322344 Underlying type of an enumeration in MATLAB execution changes from string to coder.internal.string after code generation
MATLAB Coder 3323243 Incorrect code might generate for MATLAB functions with persistent variables that are called as size arguments of another functions
MATLAB Coder 3330584 parfor-loop that writes to a sparse matrix
MATLAB Coder 3347359 Updating or simulating a Simulink model that passes a cell array of character vectors as a parameter to a MATLAB Function block might crash MATLAB
MATLAB Coder 3383168 fft function using the CMSIS library on ARM targets
MATLAB Coder 3396255 MATLAB code containing A = B(:) that are evaluated at code-generation time might produce incorrect results
MATLAB Coder 3431170 gcd function when first input is negative and second input is 0
MATLAB Coder 3432183 Generated code for the function batchnorm may produce incorrect result if an unformatted but permuted dlarray object is used as input
MATLAB Compiler 3454082 Launching apps via Finder or open shell command on macOS fails
MATLAB Compiler SDK 3305753
MATLAB Runtime crashes during shutdown after calling Java package on Apple Silicon
 
MATLAB Web App Server 3350868
Color picker in web app shows gray for preset and gradient switching
Model Predictive Control Toolbox 3264319

If you do not have a MATLAB Report Generator Toolbox license, and you attempt to use the MPC Toolbox review command, a license manager error occurs.
Motor Control Blockset 3361467 BLDC block from Motor Control Blockset generates incorrect Hall sensor signals
Optimization Toolbox 3304142 lsqcurvefit function errors with option SpecifyObjectiveGradient set to true when solving a constrained problem
Parallel Computing Toolbox 3312951 Interrupt during data transfer to MATLAB Job Scheduler cluster might cause MATLAB to hang
Parallel Computing Toolbox 3317173 mldivide and mrdivide with gpuArray input causes host memory leak for some overdetermined problems
Parallel Computing Toolbox 3411106 MATLAB might crash when using gpuArray/arrayfun containing multiple conditional statements that initialize the same variable
Parallel Computing Toolbox 3421499 Incorrect indices returned by min and max for gpuArray inputs when reducing more than 8192 elements in columns or higher dimensions of the data
Parallel Computing Toolbox 3443969 movstd might error and movvar might incorrectly return negative values with single-precision gpuArray input data
Parallel Computing Toolbox 3461288 Parallel pool creation might time out on machines with non-UTF-8 locales
Polyspace Access 3279191 Sporadic performance issue when updating fields in Result Details pane
Polyspace Access 3389558 Polyspace Access might be slow when uploading a new analysis
Polyspace Access 3411128 Jira Server migration requires OAuth2.0 and Jira Issue Types do not appear for projects in Jira Cloud
Polyspace Bug Finder 3291729 Validating MATLAB Job Scheduler connection profile generates undefined function error
Polyspace Bug Finder 3312857 Cannot upload coverage results from the new Polyspace Platform user interface to the Polyspace Access web server
Polyspace Bug Finder 3317292 Polyspace analysis fails with project or options file created from a compilation database using QNX compiler commands (qcc, q++)
Polyspace Bug Finder 3324120 Build error when running polyspace-configure on a Windows machine with the SentinelOne software enabled
Polyspace Bug Finder 3350903 Diab v5 C++ compiler uses the std namespace by default
Polyspace Bug Finder 3351560 Long code snippets in the SARIF location properties can cause the export results error: GetFindings server error 500
Polyspace Code Prover 3277378 PolyspacePackNGo stops with the error message: Unrecognized function or variable 'pslinkprivate'
Polyspace Code Prover 3375576 A calculation error in the bitxor operator on intervals can lead to incorrect results
Reinforcement Learning Toolbox 3366701 DDPG agents, TD3 agents, and DQN agents do not apply exploration noise during training when getAction is called before training
Requirements Toolbox 3176879 Closing a requirement sets file discards unsaved changes in link set files, resulting in lost modifications.
Requirements Toolbox 3290120 Requirements Editor shows incorrect verification status rollup when linking to external results
Requirements Toolbox 3350554 Navigation to linked requirement in Requirements Perspective fails when requirement set is not expanded and Requirements Editor is closed
Requirements Toolbox 3403412 Exporting project to previous version fails when link sets for the project artifacts are not loaded
Robotics System Toolbox 3291484

Incorrect wheel speed range data in the loadrobot function output for the robot library models of the Robotics System Toolbox
Robotics System Toolbox 3306966 Warnings and NaN values from generalizedInverseKinematics and inverseKinematics when using the BFGSGradientProjection solver algorithm
Robotics System Toolbox 3307152 MATLAB Compiler fails to generate executable for a script that uses the contopptraj function
ROS Toolbox 3322659 ROS 2 Get Parameter block generates double_array as integer_array
SerDes Toolbox 3460015 Eye Measurement block and functions show incorrect results when Extrapolation method is set to DualDirac
Signal Processing Toolbox 3345536 Digital filters created with Signal Processing Toolbox fail to load in Filter Analyzer app
SimBiology 3306582 Incorrect application of group-specific variant and doses for Group Simulation or Fit Data programs in SimBiology Model Analyzer
SimBiology 3341381 SimBiology Model Analyzer displays incorrect transformations in the row and column labels of the covariance matrix for fit results
SimBiology 3342699 SimBiology project fails to save after a failed program run
SimBiology 3389157 Error when trying to run a Fit Data or Group Simulation program in SimBiology Model Analyzer
SimBiology 3401116 Time plot for SimBiology.gsa.Sobol results can show incorrect values for unexplained variance
Simscape 3166176 MATLAB crash when renaming Simscape model after closing its Variable Viewer
Simscape 3330212 MATLAB might crash with calls to physmod_common_mf_system_xform.dll in the crash stack if model contains custom Simscape blocks with equations assigning outputs to parameters
Simscape 3405750 For certain combinations of the Solver Configuration block parameter values, MATLAB crashes when you change Solver type to Partitioning
Simscape Fluids 3437430 Incorrect results for Pressure Compensator Valve (TL), Pressure Reducing Valve (TL), and Pressure Relief Valve (TL)
Simulink 2479866

Extra delay at input port of block connected to output port of Mux block with Subsystem block source
Simulink 2999921 MATLAB might crash during accelerator mode simulation of an unmodified model that references a modified model
Simulink 3174951 On Windows 11, closing model windows or dialogs quickly may crash Simulink.
Simulink 3179540 SLXP file changes might cause incorrect simulation results
Simulink 3207356 Incorrect Accelerator mode simulation results for model with top-level Model block
Simulink 3207738 Unexpected error about Stateflow blocks and Matlab Function blocks placed in Signal Viewers
Simulink 3243261 Inconsistent bus object definitions in data dictionaries used by model hierarchy might cause MATLAB to crash
Simulink 3249048 Protected models (.slxp) that specify any tunable parameters might produce incorrect simulation results
Simulink 3265350 Models containing Display blocks might cause MATLAB to crash during simulation
Simulink 3268671 Simulink might throw assertion when updating models containing MATLAB Function blocks with break statements
Simulink 3269339 Parameter Writer block writing to global workspace variable in referenced model produces incorrect simulation
Simulink 3276618 Comparison tool does not detect changes in mask constraints in Simulink models
Simulink 3279320 Simulink mistakenly resaves unchanged referenced dictionaries in a data dictionary hierarchy when hierarchy contains non-empty Architectural Data sections
Simulink 3285779 Blocks that have fixed-in-minor-step sample time might produce wrong answers if one or more models in the model hierarchy use a local solver
Simulink 3304210 Wrong output for Weighted Sample Time and Weighted Sample Time Math blocks with Software Deployment Platform (SDP) workflow
Simulink 3307261 Missed rebuild of referenced models that use dynamic enumerations at interface
Simulink 3320659 Parameter tuning using slider/dial widget fails with External or Rapid Accelerator Simulation mode
Simulink 3321304 Enum typename prefix is removed from Enum element names when using Simulink.importExternalCTypes
Simulink 3321999 MATLAB might crash when compiling or simulating models containing custom code that uses imported const alias types
Simulink 3322083 Export of model as a Tool-Coupling FMU might error
Simulink 3322750 MATLAB might crash when simulating models that contain multiple instances of a referenced model and active breakpoints
Simulink 3322801 From Spreadsheet block with Range defined and many data rows in spreadsheet errors
Simulink 3328847

Simulink crashes on loading a model having mask parameter values saved with an old parameter name.

 
Simulink 3332760
Parameter Writer block writing to workspace variable used by block with constant sample time produces incorrect simulation
Simulink 3340151 Creating a protected model might reset the file generation control preferences
Simulink 3341589 Incorrect generated code with code compile variants within reusable subsystems
Simulink 3341982 Simulink may ignore handle object property assignment with Simulink.data.Connection object connected to a data dictionary
Simulink 3342976 Simulink UI might be slower when connected with a VPN
Simulink 3343047 Dataflow subsystems using Automatic frame size calculation and directly connected to inline Variant Source blocks might produce incorrect results
Simulink 3343307 Changes to mask callback files used by referenced models might cause incorrect simulation results
Simulink 3343892 Selecting a block whose data type is an invalid variable name might result in an error in the Diagnostic Viewer when the Type Editor is open and docked in the Simulink canvas
Simulink 3348226 MATLAB Function and Stateflow block produce simulation and code mismatches when using unbounded arrays and buses from custom code
Simulink 3351426
Variant Subsystem with runtime activation may cause incorrect results in rapid accelerator or code generation
 
Simulink 3355699 Simulation result incorrect when Parameter Writer block in event-based subsystem writes to workspace variable used in same subsystem
Simulink 3356835 Incorrect result when performing accelerated simulation on model with bus parameter of strings
Simulink 3365528 Incorrect results from Shift Arithmetic block in accelerator and rapid accelerator modes and code generation
Simulink 3366432 String type output from MATLAB Function block inside While Iterator Subsystem does not hold value from previous iteration
Simulink 3368027 Incorrect initial values with conditionally executed subsystems and variant blocks under specific conditions
Simulink 3368475 Model with MATLAB System blocks using setNumTicksUntilNextHit might produce incorrect results in Rapid Accelerator mode
Simulink 3369688 MATLAB might crash when you use the set_param function to set the EventTriggers parameter of an input port inside a library
Simulink 3371687 Simulink hangs when publishing model comparison reports
Simulink 3377404 If you close a model while the model is being saved, Simulink might crash
Simulink 3377950 Drag and drop in Mask Editor parameters table does not work in certain scenarios
Simulink 3377992 Parameter Writer block at root level writing to Model block parameter with non-auto storage class produces incorrect simulation result
 
Simulink 3379336 Simulink.SimulationInput or sltest.testmanager.TestCase object configured with the VariantConfiguration property might produce incorrect simulation results.
Simulink 3384256 Simulation results are incorrect for Model block with initialize port
Simulink 3385250 Rapid accelerator mode simulation results are incorrect for Parameter Writer block when simulating using Simulink.SimulationInput object
Simulink 3386966 Simulink crashes when custom code uses a template class with integer constant
Simulink 3388471 Signal Editor layout does not persist when signal data or property panes are repositioned to bottom or left in application window
Simulink 3391107 Simulink Coder might generate incorrect code for reusable subsystems when UseSpecifiedMinMax parameter is set to on
Simulink 3391801
Variant Subsystem with runtime activation may produce incorrect result in accelerator mode
 
Simulink 3414241 MATLAB crashes when running simulation for model containing To Workspace or Record blocks
Simulink 3419245 Simulink.Parameter objects of string type with value set to an expression might cause MATLAB crash
Simulink 3419623 No generated code for an active (sim)/(codegen) variant subsystem in the presence of another lexicographically greater named inactive (sim)/(codegen) variant subsystem.
Simulink 3420328 When a model is saved with Model Advisor window open, reopening the model also opens the Model Advisor window
Simulink 3426114 Noninlined nested functions in MATLAB Function block might produce wrong answers during simulation
Simulink 3427329 Signal Editor performance issues when saving large and nested buses and scenarios to MAT file
Simulink 3427764 Placing a Parameter writer block outside the initialize function block, which writes to a startup variant block leads to incorrect simulation or code generation behavior
Simulink 3429161 Parameter Writer block writing to non-tunable base workspace variable produces incorrect simulation results
Simulink 3430896 Simulink crashes or generates incorrect results during simulation and code generation for models containing Simulink.BusElement objects with bus data type and unbounded dimensions
Simulink 3434397 MATLAB might crash when simulating a model containing custom code
Simulink 3434707 Dataflow domains at root model might produce incorrect logging results during first simulation
Simulink 3435209

Code generated from noninlined Stateflow Chart inside a reinitialize environment might not be compilable 
Simulink 3460721 Power Systems Simulation Onramp task is erroneously marked incorrect (false negative)
Simulink 3D Animation 3177807 Removing an actor using the context menu in the Simulation 3D Viewer for a model with Fast Restart enabled might error
Simulink 3D Animation 3253698 MATLAB might crash when loading actors from a MAT file containing a sim3d.Actor object
Simulink 3D Animation 3293529

Unreal Engine Support Package Incompatible with Linux platform 
Simulink 3D Animation 3302163 Attaching a light as a child actor fails to update the light actor during run-time
Simulink 3D Animation 3386860 3D simulation containing sim3d.Light object errors when transform properties of light do not match the number of lights
Simulink 3D Animation 3391543 Setting Scene View in Simulation 3D Scene Configuration Block to Simulation 3D Actor creates an offset in the view
Simulink 3D Animation 3393519 Simulink 3D Animation does not work with JavaScript-Based Desktop
Simulink Check 3300706 Model Advisor reports generated with exportReport incorrectly filter Failed and Passed checks
Simulink Check 3315062 When a configuration file created using Model Advisor Configuration Editor (MACE) is selected, edit-time checks with BlockTypeParameters table input parameter do not give results as expected
Simulink Check 3328809 Custom Model Advisor checks with input parameters of type "PushButton" generate errors
Simulink Check 3353993 MATLAB might crash when updating requirement verification status, dashboards, or metrics
Simulink Check 3356369 Model Maintainability Dashboard fails to calculate Halstead complexity for models that contain State Transition Table blocks
Simulink Check 3419466 MATLAB crashes when dashboard re-analyzes project in a previous release
Simulink Check 3445231 Model Advisor check Placement of requirement links in a model (Check ID: mathworks.himl.hisl_0070) encounters an error due to the missing System Composer product
Simulink Code Inspector 3374112 Code Inspection might fail for model using Round block with MinGW compiler
Simulink Code Inspector 3411291 Code inspection fails when Code generation folder structure is set to Target environment subfolder
Simulink Coder 3290674 Code generator incorrectly omits data transfer protection code for muxed signal branches connected to triggered subsystems that run as different tasks
Simulink Coder 3320015 Error using custom system target file (STF) with option that uses a callback without arguments
Simulink Coder 3329054 Compilation error occurs due to generated C++ structure containing a data member with its member type name identical to its member name
Simulink Coder 3361210 Code generator omits data transfer code for virtual bus signal consisting of elements that originate in multirate function-call subsystems
Simulink Coder 3387652 Using XCP-based external mode simulation with a target that runs at a different rate from the model and uses a hardware timer for sample timestamps, might result in incorrect time data
Simulink Coder 3428602 Incorrect paths created by parallel building of referenced models that use blocks from DDS Blockset
Simulink Compiler 3002785 Exporting a Simulink model to Standalone FMU errors when there are leading or trailing whitespace and newline characters in port block names
Simulink Compiler 3314303 Simulink App with SimulationProgress component errors out when running as a deployed standalone app or as a deployed web app
Simulink Compiler 3337049 Variable-step FMU exported from Simulink model errors out during simulation
Simulink Compiler 3338521 Exporting FMU with parameters might result in error '<missing> string element not supported'
Simulink Compiler 3382732 FMU generated from model with single data type interface violates FMI 3.0 standard  
Simulink Control Design 3400206 MATLAB may crash with commented out or inactive variant blocks as operating points with linearize()
Simulink Coverage 3166757 Cyclomatic Complexity incorrect when coverage filter excludes subsystem containing Stateflow chart
Simulink Coverage 3259009 Aggregation of coverage data for subsystem into top-level model might fail
Simulink Coverage 3277131

Coverage details not displayed when simulating harness model of Stateflow chart that calls external MATLAB file
Simulink Coverage 3294406

Coverage results in the generated PDF might not match the results in the Simulink Test Manager
Simulink Coverage 3305337 Coverage aggregation for test harnesses causes an error when combining a fast restart normal mode testcase with a SIL mode testcase
Simulink Coverage 3310931 The combination of SIL or PIL simulation mode, fast restart mode, and coverage analysis on models containing custom code might cause errors when attempting to generate coverage reports
Simulink Design Verifier 2905934
Automatic stubbing of unsupported blocks during analysis can result in incorrect reporting of dead logic
Simulink Design Verifier 3190563

Compatibility check for Test Generation analysis crashes MATLAB if model coverage objectives is set Enhanced MCDC 
Simulink Design Verifier 3270721 Simulink Design Verifier analysis might report an error for models utilizing Simulink.Signal objects with enumerated data types
Simulink Design Verifier 3290314 Test cases get linked to incorrect requirements, when exporting Simulink Design Verifier generated test cases for a Requirements Table block to Simulink Test.
Simulink Design Verifier 3299312 Simulink Design Verifier analysis report may not show unsupported blocks
Simulink Design Verifier 3324799 Simulink Design Verifier incorrectly reports "multiple initiators" incompatibility error for export function models containing model references with multiple function-call inports
Simulink Design Verifier 3334939 Failed to honor block sorted order for Initialize task during block replacement error message during compatibility check
Simulink Design Verifier 3339078 Assertion with Design Error Detection and Property Proving analysis when Test generation target set as Code Generated as Top Model or Code Generated as Model Reference
Simulink Design Verifier 3344701 Satisfied Decision objectives are incorrectly reported as unsatisfiable for MATLAB system blocks under certain conditions.
Simulink Design Verifier 3359067 When a model contains a Simulink.VariantVariable with a specification input that contains a non-auto storage class, Design verifier shows them as incompatible.
Simulink Design Verifier 3386546 Simulink Design Verifier reports model configured for accelerator model simulation as incompatible for the analysis
Simulink Design Verifier 3389779 Simulink Design Verifier ignores overridden parameters on a referenced configuration set from a model reference
Simulink Design Verifier 3413859 Incorrect results for export function models which access a global data store
Simulink Design Verifier 3435068 Simulink Design Verifier compatibility check might fail when the model file name length is 63 characters
Simulink Fault Analyzer 3282784 Deleting faults with behaviors can cause Matlab to crash
Simulink PLC Coder 2757281

Incorrect code generation for the Recursive Least Squares Estimator block when the PLC Coder target IDE is set to MULTIPROG 5.0 or PCWORX 6.0 
Simulink PLC Coder 3260551 Function nchoosek is not supported for code generation
Simulink PLC Coder 3298178 Reuse of global signals at atomic subsystem boundary can lead to uninitialized variables.
Simulink PLC Coder 3408640 When the "Remove unused ssmethod FB call arguments" is switched on as an optimization option for nested Matlab Function block inside nested subsystem, Code generation fails.
Simulink Real-Time 3272924 MATLAB crash can occur while using built Real-Time application for a model with atomic subsystem having bus selector output
Simulink Real-Time 3283805 Using DDS blocks in a Simulink Real-Time model causes an error during external mode simulation
Simulink Real-Time 3311668 Log data does not appear in the LOG section of the status monitor
Simulink Real-Time 3421659 When multiple J1939 Transmit blocks in model use different sample times, real-time application execution can drop some J1939 messages
Simulink Test 3208842 Parallel test execution in Simulink Test Manager might fail for reference configuration sets
Simulink Test 3236964 Coverage filter in test file not applied to aggregated test coverage result
Simulink Test 3272145 Using fast restart with test case containing logical and temporal assessments causes test to fail
Simulink Test 3385061 Equivalence tests using two harnesses with the same name and different top models might produce incorrect test results
Simulink Test 3390468 Deleting all test results might not reduce temporary disk space used for results
Simulink Test 3404225 Simulink Real-Time models using C++11 or newer language standard might error during build
Simulink Test 3411465 Triggered subsystems containing test sequences with verify statements might cause error
Simulink Test 3451139 Iterations in real-time tests might use out-of-date real-time application
Stateflow 3121311 Stateflow Chart and MATLAB Function blocks that use ismember generate shared utility code that has missing headers
Stateflow 3283048 Exiting Atomic Subchart via event on entry can execute incorrect actions
Stateflow 3301395 Incorrect values logged by Stateflow for local buses containing an enumeration 
Stateflow 3315617 Stateflow chart crashes when an entry action calls a MATLAB function
Stateflow 3327855 Error message hyperlinks and sfhelp result in "Documentation File Not Found" error
Stateflow 3334287 MATLAB crashes when simulating a Stateflow chart that uses a MATLAB Function to trigger a local event
Stateflow 3367977 Disabling Saturate on integer overflow property does not prevent safe cast checks in generated code
Stateflow 3388827 Incorrect outputs from Stateflow charts with unsaved changes in variant subsystems
Stateflow 3390399 Stateflow find operator does not return Stateflow.AtomicBox using IsLink property
Stateflow 3395839 Unexpected error for chart and test sequences containing verify operator due to missing slTestBlockInfo definition
Statistics and Machine Learning Toolbox 3323303 kfoldLoss can return incorrect results when you pass a ClassNames value to the fitting function or you specify a ScoreTransform value
System Composer 3298963 Stereotypes not reported properly when multiple profiles are imported into the model using the Report Generator APIs
System Composer 3301996 Connecting a port to a Reference Component block that references an unloaded model might cause MATLAB to crash
System Composer 3343263 MATLAB might crash when opening top model with subsystem reference and data dictionary
System Composer 3350346 MATLAB might crash when two subsystem reference components and adapter are connected inside an architecture model
System Composer 3366758 MATLAB might crash during compilation of a test harness model created for an architecture model containing an Adapter block
System Identification Toolbox 3293725 The Hammerstein-Wiener model estimation dialog of the System Identification app fails to open on certain desktops.
System Identification Toolbox 3404632 When estimating Hammerstein-Weiner models, if your data has different input and output sizes, the System Identification app throws an error
Text Analytics Toolbox 3387466 MATLAB might crash during CPU inference on language models for out-of-bounds sequence lengths
Vehicle Dynamics Blockset 3316428 The left side anti-sway bar force feedback has the wrong sign for independent suspension blocks with the anti-sway bar option
Vehicle Dynamics Blockset 3323555 The right rear wheel aligning moment steer compliance characteristic lookup table associated with the AlgnTrqSteerCompl parameter in the K&C Suspension blocks has no effect in the K&C Suspension library blocks
Vehicle Dynamics Blockset 3325069 K and C suspension steer angle effects are improperly influenced by unrelated K and C suspension effects
Vehicle Dynamics Blockset 3337547 The Predictive Driver block Grade port units are in radians rather than degrees when both the longitudinal and lateral control modes are set to "Predictive"
Vehicle Dynamics Blockset 3431399 Suspension block parameter values unexpectedly changed when saving older model in newer release
Vehicle Network Toolbox 3339066 getValue reads CDFX file hexadecimal numbers ending with "E" as NaN
Wireless HDL Toolbox 3315719 The LTE Turbo Decoder block outputs incorrect results when a discrete valid signal is provided as an input. This problem occurs silently without triggering any error message.
Wireless HDL Toolbox 3359400
Symbol Demodulator block errors during HDL code generation when you specify custom constellation mapping as a variable.
Wireless Testbench 3317720 Host interface script fails to execute for Simulink models with exactly one streaming interface configured as 'Host'
WLAN Toolbox 3303420 Incorrect EHT-LTF and  HE-LTF channel estimates for EHT TB and HE TB formats under some parameter combinations
WLAN Toolbox 3398970 Unable to recover PSDU bits from EHT or HE Data fields for a user with STAID 2046 in an OFDMA configuration

R2025a Prerelease

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Content updated: December 18, 2024