Line trace and projectile only hit actors not characters/AI

When I try to shoot AI or characters the Line trace pass through. I Don’t have any result using Event Any Damage or On Component Hit or On Begin Overlap of the AI Character. I have done a actor with a static mesh and set an Event Any Damage and it work. So it seams to work with Actors but not AI character. I try to find a way to get other character or AI character to get damage.