For now the basic AI_Controller class one will do, no need for special functions if they’re on the character and working- because that’s what is already happening before you possess them. Everything is assigned a controller by default if they are pawn or character class- what’s happening is you’re removing that to add in the player controller, but not replacing it when you move the player controller out. I promise you, once you mess with it a bit it will make so much sense!