Disconnected in Sekhemas final chest room after beating last boss & opening one chest!

Please tell me there is a way to restore my instance. I beat the fourth boss, dumped my excess water for keys opening a single chest and booked it back to the nearby stash to Identify everything in my bags . . . and then got disconnected from the game. I never left the instance yet now here I am upon relogging in staring at Balbala at the entry door.


halp