The Phaaryl Megalith - Boss stuck

after i finished "The Devourer" the body won't despawn.
the next Boss "Riona, Winter's Cackle" got stucked in the devourer's body.
so i cant attack the boss nor my ballistas.

look here:
https://www.youtube.com/watch?v=S6uuphmxuNs

same problem, the only solution i can found
i close the game for 30 min to forced close the map :/

https://x.com/chingatunovela/status/1912545138129211639