Ran a dungeon twice yesterday - specifically, Haukke Manor - and in both runs, the SCH/SMN pet bugged out and ran straight through the walls and in to the first, and then final, boss rooms. This was not simply visual, as in both cases the boss was pulled by the pet.

The final boss made some sense as it was probably chasing the ahriman into the room, but on the first boss it entered the room from a corner well away from the door whilst we weren't even fighting.