So this issue was apparent from Day 1 that I got the phone but I just ran with it. So for some odd reason the previous button for Google Play music and almost every Music player app with the exception of the stock and vlc. The previous button will not work or it will only work if I skip a song and then press on the previous button. Not only does it not work in app but widgets and the status bar controls don't seem to have the previous button working. Have any of you guys experienced this? Or is it just my phone? Also restoring the phone has no effect.