Azmadi, Faridun Prince Despawning

For some reason, when I was running 2-person Azmadi with a friend, he did his dash attack where he says "death from every angle" or something. We both ran to the opposite end of the arena to avoid the one-shot dash attacks, but then we ran so far that his health bar disappeared and he never showed back up. He seemed to not know where to dash anymore and despawned. We both had to pause the game and respawn at the checkpoint.

Pls fix. We had so much damage on him.

[https://cdn.discordapp.com/attachments/805886647048732712/1455067705064423466/image.png?ex=695360e6&is=69520f66&hm=5403839dc69300b1476a88af445a59955bfde600199c7d68709a930b87ac7e0f&]P.S.: Not sure if this method of attaching an image works, or how to use it properly. But attached is meant to be a screenshot of the empty arena with no health bar and the quest still saying to defeat Azmadi.