Sanctum - Auto-aim broken?

Just ran sanctum and the aiming in it seems broken.
I was shooting anywhere but the boss or the rares; most of the time even without having a target in the lock. I couldn't make the char target anything right in front of him or in the same room, it just shot without aiming.

Feels very broken (as if my char was aiming behind walls and not the room/section I was in) and doesnt behave like this in maps at all.

Anyone else?

You have an option to toggle to manual aim in spell assign menu there is a spell that allows it altough its weird since its hard to see what enemy you are targeting. You have to guess by the health bar name.

Thx for the hint!