Rathbreaker Boss broken AI and Immune

During the fight a bunch of the small hyenas shoved me right to the edge of the arena. Rathbreaker then charged at me leaving the arena. Once he left the arena he started pathing back to his spawn position and became completely immune. Once getting back to his spawn position he just sat there frozen.

As an upside, the detail on the new models is amazing. Image attached.

same here, and yes the model looks amazing

Similar situation to the above posted. My Rathbreaker is not completely immune however. I can do damage and see his health bar significantly move, however he regenerates health at an extreme rate. Was never able to do more than a 1/10 of his total bar with a full damage rotation.

Edit: Respawning at checkpoint reset the fight and thus the issue

Same here, Bug Report ID: #3853550895

got the same issue

Safe problem for me.