Hello!
I am updating a songs rating by sending the value of the rating to "https://api.music.apple.com/v1/me/ratings/songs/id". The call succeeds and I get a 200 status code response back. Also when I fetch the rating for the just updated song, the returned data is correct. Just FYI, the app is still in development.
Though, when I check the rating in the Apple Music app, the values aren't updated. Only when I switch off the "Sync Library" option in the Settings and turn it back on, the changes are also reflected in Apple Music. On my Mac I have to relaunch the Music app to see the changes.
Why does that happen?