Audio Occlusion no work with pawn

Hello, I’m using fmod for vehicles, the problem is that when I use the occlusion effect on a map it works correctly with the collisions, but when I add this sound in a pawn and add the Occlusion effect it does not work with the vehicle collision, I tried and looked for some answers but nothing, does anyone know why this problem happens? If it works correctly on the maps, why not on the collision of the car?
(I also put some cubes in the actor to know if it was the vehicle but still adding the cubes does not work the effect, as if this effect does not work with actors or similar, but even so I think I’m wrong)