Same issue here, once Roderick died (in the storage room of the barracks in my case), the music became distorted.
NPC Interactions
If I manage to charm Sergeant Curtis into letting me take a look around in the storinghouse and I succeed he still stops me when I want to walk in. Maybe intended but I would expect him to let me walk in if he says: "take a look around".
A bit similar as the bulls, if I talk to Curtis with my weapon sheated I get barely no conversation options, when it is drawn I can suddenly ask about Cyseal, Jack's murde about himself, etc.
After loading a save where Curtis liked me he suddenly tells me to go away since he doesn't want people to see him talk to the likes of me.
Skill Abuse
I think someone already mentioned this, but with rush I can sometimes get in houses (I actually wanted to attack the door with rush, but I just got in Evelyn's house.. getting out is something else :p).
Breaking Bugs
In an attempt to create potions I threw these potions on the ground and then dragged some ingredient over it.. (Drunaede or something like that?). The game crashed right after.
