It is happening to me as well. Basically, if I get to 30 lines past the current command window size, it starts to auto-scroll back up to that point. That is to say, the 30th line line past the height of the command window gets forced to the last line in the window. And every time I type in a new character, it skips down to the current command line and then starts to auto-scroll back up to this point (30th line past the vertical size of window) in the command window. This point varies as I stretch the window. Of course, if I clear the window ("clc" or command-k on Mac), then it lets me continue to enter more commands until it reaches this magical point again.
Please resolve ASAP. It is starting to slow me down. Considering alternatives at this point.