My audio zone is not playing in full range of your box collider

I continue trying to learn fmod, but I created a reverb zone like in a video on youtube, but my zone was stoping to play the sounds on the game when I start to go far from the area, so I think “I’m gonna expand the zone.” but after doing this, the sound still playing only where the zone was created.

I don’t think I fully understand your question. Are you saying that the further away from the reverb zone you get, the less of the snapshot effect you are hearing?

It will be best to attach your FMOD Studio project to Unity via Live Update and checking to see what happens when you enter the snapshot zone. You should see some orange dots in the mixer on the properties scoped in when a snapshot is playing. It is possible that your snapshot has accidentally scoped in some other properties you are not expecting.