As in the title there is a problem with the quest about catching (or letting go) a moonsugar dealer in the tavern-
after following him downstairs he opens the door and then stops walking, just freezes.The invisible Blades member is waiting in the room but his dialague stays
the same and the dealers dialogue also is the same as when walking with the player. I tried several times, placed the guy in the room but nothing happens.
I run the dialogue lines again with the placed npc, still nothing.

Sometimes the game stops working when he opens the door but warnigs.txt doesn't show anything
I tried with just one character and it might be something wrong with my game or that
I play on the polish version of morrowind but i've finished many quests in the mainland and everything went fine