Breach boss (Hive colony) stucks

Problem: Fight stucked, no bosses present, nothing to attack or progress further

https://i.imgur.com/OLdGdn0.jpeg

/bug 3701623324

stucked, seems, somewhere during phase transitions:
fighted the shield one, then the ranged one, then shielded one started the rain ability that i've died to and clicked "respawn" right after.

Relog or moving around doesn't help

upd: also idk if it's intended or not, but i'm able to use portal scrolls in boss room