Sorry if these have been raised already, I tried searching the forum, but didn't find any hits. If they have please disregard.
First bug
Using the form of helpless beast spell and killing pig people = giant dead bodies.
They first turn into giant pigs.
And then giant people.
Second bug
There's a skeleton in the hanging sepulchers that I can't kill, or target. I can't get out of combat or leave and for some reason it's doing auto damage to my party even when we're not near it.
Third bug
Companions coming way too strong off the bat, usually immediately after they join the party. This leads me to rejecting all of their advances, because they are strangers at that point.
First and third bugs aren't really too significant, with the prior even being amusing. The second bug makes it impossible to advance that specific quest, I'll probably just reload until it works, but I'd rather not.