All or Nothing: Stuck in Crystal Wall

I was playing All or Nothing, Scion & Champion with another player. At the final with Branded Aurene, a crystal wall comes up to seal off the fight area. Naturally, my character gets stuck in this wall and cannot interact with the fight at all. I manage to use the /stuck command to escape, but it respawns me back in Ogden's room, and I am unable to re-enter Glint's Lair until the other player finished the fight and moves to the next stage.

ArenaNet, could you please remember that you created a MULTIplayer game? Even the Living World should pay more than lip service to having an actual party playing together.