Boss Bug - The Black Crow

Basically I cleaned the map, started the boss at the end, was slow damage incoming and close to 50%, my minions randomly stopped attacking. Usually that boss goes into the next area but it doesnt do it. The boss continues attacking me but my minions ignoring it.

video:


Bug ID:
1624761136
3357691413

Fun fact, I thought I am bugged and invited a friend to kill it quick but he also couldnt do any damage. So I think the boss' second phase just glitched out.


EDIT: Sorry, just saw it's already known, maybe my report helps to find the bug quicker or something.