Just an update i test the new version and all went fine for sync with android 10 and external sdcard.
Just now a bug with gmmp rating sync : sendStats: Unable to retrieve stats for player: 1
Have the same error on Huawei P30 with Android 10.
Can't sync with Gonemad 2.2.23. I can't do playlist sync also, only full sync. If I try it shows no playlists, only red server not running error, but full sync works.
With Poweramp it's fine. I've also the following issue. When I create an autoplaylist, limit tracks, random list, play or rate one of this songs in poweramp and sync back to musicbee, it shows that files not match. But files exist on Android and within Musicbee library.