Having a problem with Audio Reverb Zones.

Hey guys, this is my first post here, but I'm in the middle of making a scene atm, and earlier before I closed unity, I had a cave that contained a reverb zone. The zone was working fine and echoed everything as I had wanted it to. Note, all of my sounds were 3D sounds at the time and I had closed and opened unity multiple times with no problem. About 15 minutes ago I tried to restart unity, and I noticed that none of my sounds were playing and the ones that were, were barely audible. I had since then changed the sounds to 2D sounds and the only problem was, any sound attached to the player remains un-effected by the reverb. Now at this point, I pressed the play button, enabled and disabled the audio listener attached to my player, and its fine. But if I click play again it stops working? Someone please help me out, I can't figure this out for the life of me!