The Crow Bell Boss Bug - Maps

I played the map T4 and died at boss. After the respawn, I engage the boss and get him to the 50% of the HP and it becomes immortal. I cannot damage it further and it does not go to the next phase. The door to second part of fight where it gets the bell is open but the boss doesn't go there. I let it kill me and tried again to the same effect. Tried to exit to character screen but it changed nothing, just get me back into the fight with the same immortal boss. Also tried to move to the last door where the boss goes to the next phase, but still nothing changed.
I'm playing monk with ice strike and shattering palm. I can drop the Frozen locus spell but it doesn't do anything and my hits miss the target (shattering palm produces no shard - visible effect) and ice strike misses as though the boss is not there... but the boss hits me
I let it kill me again so I could close the map since you cannot force the map to end or teleport out.. SO lost nice 30% of exp on this bug. Luckily its on level 77.

Same, right now im in T15 map. And I did too much damage, he now has a perma shield and takes no damage.

I also cannot complete the map, I logged out and returned to town, the map is completely bugged.

Same, can't damage boss anymore at half HP.

Same here, happened twice

I thought that the first time i bursted him down too quick, so the 2nd time I waited and the same thing happened

Same here, boss bugs and cannot be killed at 50% life. He is supposed to go to next phase but stays there invulnerable. Only way out is to die and lose xp :))))))

same thing just happened to me, hopefully they patch it.

why is this still a thing.. ggg fix your shit