[Bug] Prisoner Boss Regenerates to Full Life When Companions Are Active

How is this still a problem even after all the time Act 4 as been out?

I can nuke him pretty easy but once it becomes a race to see if he dies versus my mana pool then he'll win every time through attrition.

No matter how fast I am on the draw with the ballista, it's never quick enough.

Update: 11th time it worked.

This is continuing to happen. I have tried this boss many times now. I am using a plant companion build and an unable to kill the boss without full regeneration each time, even when i don't think a plant is in action at the time.

PLEASE ! Fix this issue! This boss encounter would be amazing if it wasn"t BUGGED !

How am I supposed to proceed?

I give up, the campaign has won. I cannot justify another moment, especially when I come up against a boss like this that doesn't work with minions and healing, that regenerates even though I used the ballista, that just one shots me even thought I'm dodging. It's a perfect culmination of a game that seems to just hate it's player base.

I came back. Tried the fight again, it went exactly how it was supposed to with each ballista doing what it was supposed to do. I did nothing different in the fight. There's obviously something bugged and sometimes he's going to just regenerate and people will throw bodies at it and leave the game in frustration. Hopefully yall respond and acknowledge the issue.