Temple

same for me by using supporting fire, have to respawn checkpoint then can damage mobs

Ran into same issue, Huntress Companion build .. Companions can kill 'hallway' mobs but the minute i enter a temple room they deal and recieve 0 damage. I can use my basic spear jab to deal damage but my Companions just dont do anything.

Same here, the doors locked and some mobs ran into the room that didn't look like they belonged. Some combination of immunity from the other room and the logic preventing them from entering a new room, I guess.

bump

When I enter Collective Legion rooms and enemies spawn from the machines in the walls, I can’t damage them, and they can’t damage me.

Ran into this bug in the temple, it seems like the monsters that are unkillable are considered to be outside the room so that's why you can't damage them. Just portal out of the temple and enter again from the main entrance, walk to the room you got stuck in but don't enter and kill the enemies from outside the room. After killing everyone inside the room when you go back inside, the room is considered completed and you can move on.

Same issue here

Same here, both the mobs and myself are invulnerable. Happened in Crimson hall and Spymaster's Study so far. Since I'm not doing this mechanic until a fix is out I cant say if other rooms are affected.

Playing shapeshift build if that's relevant, although swapping forms to human does nothing to change it.

I am having the same issue.

Bug Report ID: #2630276892

Same issue—there are immune monsters in the Spy Master room.