I can't finish unlocking the tribute hall. For some reason I have no tribute to turn in as part of Invitation from the Emperor. My friend's guess is that I hit one of the inventory full bugs. I can't progress in anything in the Tribute Hall because of it or finish Bad Juju. Does anyone have any idea on how I can get out of this stuck spot? I can't believe Bungie doesn't have any /bug or CS ticketing support in game.