12-22-2018, 11:33 AM
If you go to Settings->Other Settings->Find Missing Files, does it show every file for every song? The last step would be to use a file manager like File Manager + (free on Google Play) to go see if the files are actually gone off the file system. If every single file is truly missing and you made no changes to the device, I can't explain how every file would suddenly be missing like that. The only time I've ever seen something like that before was when someone had their library on an SD card that was failing.
Mike
Mike