I queued for a random dungeon roughly 3 hours ago and since then any attempt to leave it has failed. I've tried logging out to character select, game login and then finally shutting the game completely down all without any change. I've swapped characters, entered a battle ground and even disabled all add-ons and again, nothing.
I've seen multiple players in zone chat also having the same problem as I am and thought maybe someone should be made aware of this.