Greetings. I've noticed for some time now that whenever I game on my Galaxy S6 and I receive any notification which produces sound, my game sound is automatically muted and doesn't recover until I exit that particular game and re-enter it. I do have a custom (non default) notification sound set. Is there any known problem about this and possible fix for it, or am I just a lone example of more-problems-of-smart-phones-being-broken? Thanks for any answer.