@peurocs4 I have been facing a similar issue. I think there is an extra retain somewhere in AVPlayer, or a race condition, that is causing the audio tap to be held onto, or not fully removed when the player is deallocated. My temporary solution has been to set the audio mix to nil when the View Controller that holds on to it is dealloced.
I'm working on creating an Xcode scenario for Apple to debug this. Let me know if you have something that could possibly help here too. Without an Xcode project we won't get much traction from Apple.