Character no longer playable - BRICKED. Stuck in boss fight with no boss, even after a restart.

Edit: Solved. If anyone ends up in here from search beg for an invite in global and port to them.

"Defeat Manassa, the serpent Queen" T15, Steaming Springs.

Mid fight she did the move where she makes a circle of thorns, and afterwards she disappeared. She never came back. Map did not progress. Unable to port to town. Unable to leave boss arena. Even quitting the game and then returning I am still stuck in the stupid boss arena, unable to progress, leave, or even die.

Anyone have any advice on how I can get out? I imagine after a server restart or something the zone will unload and I'll be back in my hideout or something, I just would like to keep playing tonight.

log out for 15 minutes, itll close the instance and put you in hideout again.
on the bright side, this is a good opportunity to make a second character for fun while you wait.