Rathbreaker bug

https://youtu.be/Advu_Vz8A3I

Ran into a bug while fighting Rathbreaker.
I couldn't get the full fight footage.

At the start he was taking damage as normal but then I ran down the platform to summon more minions and that's when he ran back to his usual spawn location and became invincible.

So far I can not figure out how to reset the fight to proceed... I have tried completely leaving the area, teleported back to Act 1 . logged out etc.. and he is still just stuck there invincible.

Game is bricked and can not continue rip

reset my game a few times seems to have fixed the issue