I do not use iTunes, etc. . . all my music comes from Youtube, and onto my computer with the use of a converter to MP3. When I transfer the music to my devise (using CopyTrans Manager), as much as I may try, I frequently get different volume levels in songs which require me to change the volume on my devise during playback.
Hello! 1. Navigate to Settings -> Advanced settings 2. Type "duplicates" in the search bar 3. Set value to "no". Try backing up your music albums again.