The game, for the most part, worked fine until chapter 6 where upon we decided we were powerful enough to take on Firkaag for the holy avenger sword. When arriving in Windspear hills however the fog of war had returned and no one seemed to remember us and once again we were ambushed by monsters.
Drizzt showed up as normal, and we were able to recruit the paladins to help fight the vampires, but all the quests done earlier in the game had reset. All areas were unexplored, and Bodhi doesn't actually show up in the graveyard district as normal making the game unwinnable.
I was looking for any kind of suggestions or thoughts on what might have caused this. Any help would be appreciated.