The ai sometimes can't complete the obstacle, so please restart the deck when the ai can't complete the obstacle

The problem here is you didnt let it follow a path. Instead it trys running to the "nearest actor with tag whatever your using" so it ignores the walls. Try adding a pathway which would dissappear after the AI touches it. Think of it like a trail of coins that the AI collects, and the coins lead to the green area. And you should give the actor, the pathway actor, the same tag the AI follows.

Yep

Wow

Is bug

ts is not smart