Hello Hlnoue,
Have you tried using the Spawn AI From Class node? If not, give that a shot and let me know if there are any differences.
I have a character BP configured with a behavior tree and AI controller, and if I drag him into the level and hit “play”, the tree executes and his AI performs correctly. However, if I add the character to an already-running game with the Spawn Actor From Class node, the controller never initializes and they sit there inertly forever. Do I need to be doing something after I spawn the actor to manually trigger their controller and behavior tree?
Oh hey, that works! If you wanna re-post this as an answer, I’ll accept it real quick. Thank you! I had no idea that the AI Controller wouldn’t spawn when you spawned by class. 