Anyone else unable to do the quest Traitors! in Uldum? (http://www.wowhead.com/quest=27922/traitors). Every time I click on the frond, the screen goes black and the camera moves (I see it move briefly), and then the screen returns and I gain full control of my character, no cut-scene, and no credit.

I have clicked on it 21 times now, by my count. I've logged out, logged back in, died, left the zone, and returned.