Not sure if this has been reported, bumping if so. The scripts for several 'waiter' NPCs seem to be a bit finnicky. Specifically in the Tigan's Rest and La Croissant Bleu, wherein in the former they open the exit and the door to the backroom, and in the latter they open the western private room, even if it is locked. I assume this happens because the doors are in the way of their patrol routes, so could those be fixed? I'll be posting the names of the specific NPCs when I get around to them IG.
Tigan's Rest: Barovian Bar Maid
Croissant Bleu: Suzie Villamont