Simulink crashes when adding a breakpoint to a MATLAB function block

A Simulink model I have will hard crash Simulink and MATLAB when I insert a breakpoint in a MATLAB function block. However, this only happens when I run the simulation in Normal mode. When I run in Accelerator mode, the break point works fine. The model didn't always have this problem, but I'm not sure what caused it. Unfortunately, it takes a long time to crash, reopen, and reload the large model and I haven't been able to isolate the cause.

Is there a general reason why breakpoints in MATLAB function blocks would crash Simulink in Normal mode, but not inAccelerator? I need to run the model in Normal mode for some other features I'd like to use.

Answer 1

[Brad]

This ended up being related to the fact that some reference models in the parent model were running in accelerated mode, while the parent was not. When the reference models were converted to run in normal mode, the issue resolved.