I have spent a great deal of time questing with friends doing the same quests. More frequently than not, we complete a dungeon such as The Labyrinth in Dragonspyre or The Tree of Life in Mooshu and although I participated in every battle of both dungeons, I do not receive the quest completion message. No matter what I try, it will not let me get it without redoing the whole dungeon. I let it go the first couple of times, but I just spent near an hour in the Labyrinth just to get stuck with a quest objective saying "Get the Portal Stone" and pointing to where I just defeated the Dean of Admissions. My friend completed the quest just fine. This is very annoying to me, and I would like to know if anybody has solutions other than doing the entire dungeon over again, or if KingsIsle plans to address such issues anytime in the near future.