Doing a M+ 19 Algathar Academy and after the last group of birds before Crawth the boss didn’t spawn. We realise that we were stuck in combat and that one of the birds from one of the 2 spawning packs was still in combat but not targetable or anywhere to be found. Even the hunter using track beasts could not find it. We got out of combat by using potion of gust, dh wings, etc. to jump far enough from the platform to die instead of being launched back on. Respawning at the entrance got us out of combat and returning to Crawth’s platform we found the missing bird now sitting in the middle of the platform and were able to kill it and continue the dungeon. Unfortunately this loss of time and forced deaths made us unable to time the key.
This is still an issue, just had this on a +13 key today (1/27) which totally ruined the run