I cannot set up a development environment

[phern]

u only changed the main_settings.cfg (My Documents/Amnesia/Main) ?

u could test the command 1 by 1, to see at what command the problem is
so change 1 command and test the game, again change 1 command, test the game, etc.

I already did. It starts crashing when I change ShowMenu="false".

And no, main settings are not the only thing I did, I also changed user settings inside dev_user folder, just like they said on wikia.