This bug has happened numerous times in this dungeon and others that require you to kill certain mobs to unlock a door. You clear everything before the locked door and it still says one of them remains. What a waste of time and I am getting really tired of wasting my time in a dungeon to not get the completion. All we ever get is a sorry. How about compensation for my time? Expansion pack? 80$? Your out of your mind if you think I’ll buy a expansion when these bugs still exist. Not to mention the new bug with sound that came with the latest patch. Now most of us are playing without sound. You would think I would wise up and stop buying games from blizzard.