There are some settings to make AI moving and I do not know how you set the character, controller and animation blueprint. But I have some questions about your issue:
- Do you have a navmesh in your map?
- Does your character have a MovementComponent(Such as UCharacterMovementComponent)?
- Do you set the AIController class in your character Blueprint?
- How do you set the Auto Possess AI option in character Blueprint?
By the way, PawnSensing component is a old component that it would be deprecated in future. You could use AIPerception / AIPerceptionStimuliSource components for ai perception features.