While doing my Marie Rose I have noticed something, if you are doing hex editing one *.h file and you need to put on it more than 10 textures.
Carefull 00 00 00 00, 01 00 00 00, ..., 09 00 00 00, if you write 10 00 00 00, 11 00 00 00 etc... game will crash.
Replace 10 00 00 00 by 0A 00 00 00, 11...