No, I don't think that's your installations this time, haha. Do you remember if you had Jaheira around when you first left the dungeon? If not, then there's a variable there that's not quite setting properly. If there's more going on there, though, I'll need to take a closer look at it.
*Phew!* But actually, no, she wasn't there, I kicked her out long before escaping the dungeon. Picked her up later, though, for the Harper Hold encounter, if that's relevant