I created a play list on my iPhone some days ago.
Yesterday, I played the list via my Sonos app and some songs were grayed out.
When I looked in my Spotfy iPhone app, those songs are gone.
And when i try to find those songs again with the search engine, I can't find them.
Then I did the same search on my iMac (same accout), and there I can find the songs.
Will post a screenshot from iPhone and iMac when doing the same search.
searching "shirts", on iPhone the song "Laugh and walk away" can't be found.