I’m very confused how this can be a solution, the code says to Broadcast OnPerceptionUpdated if the UpdatedActors is greater than 0. If Sight is lost or all senses do not detected something aka sight lost aka false, UpdatedActors will be 0 and the OnPerceptionUpdated event should not fire. So if it does not fire when the sense is false, it will never be able to fire and get a false value for a sense. The only exception being if you have two senses, and one sense fires true while the other did not fire resulting in a false.