My Playlist show up on my RS250 but not on my ROSE app on my iPhone. On the phone app it show 0 playlists.
Please check if you did login.
ROSE APP > Setting > My page
Do you see your account?
I do not see Setting>
In Rose APP,
At the bottom, you will see Home, Music, Tidal, Qobuz, Rosetube and others.
Slide the menu to see settings.