Phaaryl Megalith bug – third boss stuck and unresponsive

Hi, I encountered a bug on the map Phaaryl Megalith.
I activated all monoliths and defeated two of the three bosses, but the third boss got stuck and is completely unresponsive. It doesn't move, attack, or react to anything, and I can't complete the map because of it.

Tried moving away and coming back, using abilities near it, and even logging out and re-entering the map — nothing helped.

Would really appreciate if this could be looked into. Thanks!

Same here, stuck as well on the same boss, Manasa the serpent queen. I can't portal back to town, tried to log off, restart the game. Nothing worked.

EDIT: I unstuck after logging off for 15+ minutes, but now the map is marked as failed...