Apple Music Playlist playback issues

When using the Sonos App on iPhone 16 Pro, I have a longish Apple Music Playlist. Sonos will only play up to the letter “B” and that’s it…it doesn’t recognize the rest of the playlist. When I suspected that perhaps it needs to be “see” the selections in order to load everything I scrolled to the bottom and selected something else. Then it would only choose songs from a few letters worth of artists. Then the next time I went to play music from the same playlist, it went back to only playing A and B named artists. Is there some way to fully load the playlist permanently or to load it fully at each session?