The mini-game where you walk naked seems to lag when losing focus on the window, not sure if something is wrong with the engine or the script for how the NPC sees you. Restarting the game seems to fix the issue so long as you don’t lose focus of the game window again.
There is also a teleport point missing if you go to the door opposing the one of the Duke (you can go in but not going back).
Finally, one of the maid in the previous map before the Duke room is bugged and loop her dialogue forever (the one to the left).