*CHIDE*Before you chide me, yes I did try searching the forums
I am assuming you mean these forums? Or GSC? And do you mean Shadow of Chernobyl and Sidorovich's bunker?
I would say your best bet is to look here, especially at the stickies. Dunno if you have already tried that. Sorry, but haven't encountered this bug before. Sounds like a shader problem tbh, but there's no telling unless you post the crash log.