In certain quests, the NPCs would have a specific dialogue line where the game just hangs and then eventually crashes. I haven't had this problem before the EE patch. The game never crashes outside of conversations either.

I manage to get past it for some quest npcs by exiting out of the conversation before the line is active and then somehow the quest is activated in my journal. It doesn't work all the time though and it's keeping me from finishing quests.