Audio Attenuation Occlusion Not Working Properly

Hey guys, so, for some reason my Attenuation Occlusion in my project is not working, I’ve tested some other projects of the same UE4 version (4.24) and it’s working normally, the problem is:
when I activate the Attenuation Occlusion, the sound gets instantly occluded, not considering the environment, as it was some blocking it constantly…
and my visibility channel looks ok.

I don’t know if is a bug os something I’m doing wrong.

here is a screenshot of my visibility channel:

there is nothing blocking the sound to be always occluded.
here are my settings:

Vini, if you ever discovered what was happening here, I’m experiencing the exact same problem, really looking for a solution and still haven’t found one anywhere.