playlist/nas setting cannot load after hot plug the power

i’m new in volumio, after i installed to sd card i create nas setting to volumio
and then add some music to playlist.

i try to unplug the power and plug in again. the nas cannot found in the browse tab. but the setting is in there
the playlist lost.

and then i try once again to add nas setting and add some music to playlist. i reboot. and the setting work well.
i try to add another music and try to hot plug once again.

after booting the playlist gone again. but partial.

i think i must reboot everytime i add some music to playlist. how to configure the volumio to always write into sdcard after add music to playlist.
and then how to move some music playlist order?