After my Xperia 1 upgraded to Android 10, I found Music app keep crashing upon checking playlists and songs data. I checked with other music player apps, and found all playlists became empty. I deleted my 3000+ library of music and re-synced to phone from PC, and the empty playlists problem remains, with a bigger shock that all music in .mp4 format disappeared in Music app, but show up in Photo album. Android 10 is no longer able to disdinquish audio and video mp4 files, only .m4a files are treated as music, and all .mp4 files treated as video, so all went to Photo album.
Another Android 10 incompatibility is with the Media Go app for Windows PC. Android 10 can't recognise the .m3u format playlists created by Media Go, which will show up as empty content. And since Media Go will convert .m4a files to .mp4 when sync-ing with the phone, all songs in .mp4 format will be treated as video files by Android 10, and will only show up in Photo album, not treated as music anymore.
Any solutions for us music lovers to manage large amount of song files and playlists? With some 3000+ songs I can't add them to playlists one by one on the phone. Creating big playlists with the computer is still the easiest way. I think Media Go should be upgraded for Android 10 as soon as possible, but I heard Media Go is a discontinued product. And I don't think Google Cloud can manage large amount of media files which will keep us wait for ages.
