Mobile details.. Sony xperia z2, Model number D6502, Android version 5.0.2, Media Go updated. When i transfer my playlist to Z2 it is creating duplicate playlist for example if i create playlist named Rock on mobile it appears Rock, Rock (1), Rock (2).. and there is nothing in those playlist. i tried to delete but there is no option to delete playlist so i deleted manually m3u files but the moment i restart those playlist appears back in music app. At last i deleted all playlist and tried to sync with media go but it is generating only playlist and corrupt playlist without transferring songs. I tried deleting cash memory and installation of latest update to Walkman app. Hope you will help in this issue.