MODERATORS, this is not a "spoiler." It is an easily overlooked small programming requirement that has nothing to do with beating the chamber or fulfilling the quest.
The Labyrinth requires that you MUST "step" into the Dean's chamber (do not just port your other character(s) in) or you will be doing it again (and again for those other quest(s) that require it). It appears that "Finding the Dean" requires this simple pass over of a certain spot in the chamber. Just a programming glitch/requirement that is a bit too nitpicky.
ha, ha i have noticed that before in 08, but it has been fixed before, but then un fixed, (no clue how). like one time for death oni, i teleported to my friend on the other side, and i still had the same quest when i was over one where i was suppose to be. so morden, i agree. and monters PLZ PLZ PLZ PLZ PLZ PLZ do something! people are getting angry, and crying over this ( like my little sister). so the bug needs to be delt with. youve done it before, so why not doing it again.