As stated here:
I get an error
Error using opt705 (line 86)
Invalid variable name "_symans_[[32, 0, 7034898]]" in ASSIGNIN.
Error in run (line 91)
evalin('caller', strcat(script, ';'));
During a script run.
The according main script opt705.m and related functions are attached.
I assume, the error has a random nature, so I don't know how to reproduce it directly. However, I have saved data files until the crash, so it would be helpful, I could post the matfiles generated by the script so far (until it crashed).