Flights in the trade (Divinity: Original Sin)

Good time of day. Having this problem at some point in the game then the crashing started when you click trade with different NPCs, but not always, but periodically. It was also observed crashes when opening certain chests. After loading an earlier save the problem disappeared, but after a time arose again. Was perestanavlivat game, firewood, did not help. Downloaded again earlier save, again, for a while everything was fine, then reappeared. Passed 7 through 10, ie, reinstalled Windows and went with an earlier save, thus removing the saves glitches before than refilling, but the problem arose again. Please help if someone faced with this problem, I will be very grateful for your help.
P. S. I loved the first part of the game.