Well guys, when i create a playlist it will automatically created but im so confused that when i restart the phone or turn on/off my playlist (songs) will become less or sometimes gone. In short my music app do not save my songs in the playlist but i can open it and says 10 tracks in the header for example but there is no song or sometimes 5 songs just will appear. Pls help me. My os version is 4.4.2 Kitkat. I always experience this kind of problem even im using musixmatch and other music apps. Sorry for my poor english i hope you understand. Thank you.