Apple Music bug

Why is it that on my iphones Apple Music, I have songs that say "This song is not currently available in your country or region". It is available if I go search for it but in my playlist it has a dark shade around the words as if I can't select it. Also it is perfectly fine on my Mac, I can select the playlist and any song I want from it with no problem. Another strange occurrence is if I select that playlist from my new IOS widget from my home screen it is perfectly fine and can play. I'd like this to be fixed because it seems to be happening to almost only my favorite songs, its very inconvenient and annoying.