Doryani's Triump - Iron Citadel Fight locked and unable to progress

I play a wyvern flame breathe build and cooked Doryani super quickly. Possibly even sauteed him. At very low health(maybe about 2%) I was able to eat him with devour. It dropped loot with no sound. And now I am locked inside of the boss arena and the fight isn't counted as over. I can't TP. Boss music is still playing.

I exited to character select and came back in. His model is now here, but doing a T pose. No health bar or anything, so I don't think he's really there.