My Revision game keeps crashing, using GOG game with original version of Revision with clean leaked .exe file, it has been working fine but I need to talk to Gordon Quick near the luminous path compound and when I try and move from the market to the next area of the game the auto save flashes on screen but the next area doesn't load and crashes to desktop with a critical error message box full of text, I can go anywhere else in game no problem.

Tried reinstalling the game and also installed the new patch with the clean .exe but still crashes at the same place, anyone else had a similar problem?
Don't know if it's worth trying to contact the mod devs, they can be contacted on their site but I doubt they will reply.