I’ve always found some of the issues with boss movements, teleports and leap backs a bit odd, especially when they plant themselves in corners (or in the tower, on outer rings that damage you), but this one is just completely broken.
Running the Ruined Tower on an alt for Story progression, and Geppetto immediately jumped outside the arena on entrance. He’s stuck out there now, uses AoE moves when I get close, and takes no damage. Need to make sure that you fix your “invisible walls”, so that bosses cannot go out of bounds.
