The Black Crow bug stuck invisible

Hey,

First i'm not a native English speaker So excuse me for my mystakes text.

Black Crow the final boss of blooming field is actually bugged when u deal too much damage.

I play a whriling incinerate and during the second phase when he normaly broke the doors for reach the final area i dps him and he get 5%hp .

The probleme is now he can't be target by any spell , he attacked me and i can't do nothing. But he can't killed me with my build....

No teleport because i'm in a boss encounter. I try to disconnect my charaters to saw if the encounter is reset.....

But now i get a screen with "Failed to join any instance" ... I can't play anymore my chareters ....

BUMP this has been an issue since the start of the season. GGG needs to address this ASAP