Certain songs downloaded to iPhone won't play, instead prompt to join Apple Music
I have an old iPhone 6 I have set up as a music player. A few songs won't play - when I try to play them, it instead prompts me to join Apple Music.
These songs were previously purchased from the iTunes Store but the files have been downloaded to a Mac and synced onto the iPhone using Finder. The phone is signed into iCloud using the same account that purchased the songs. I have many other songs previously purchased from the iTunes Store on this phone that do not exhibit this behaviour and play just fine.
The songs play fine on the Mac from which they are synced.
I have tried deleting the songs off the phone and re-syncing them from the Mac.
I have tried deleting the songs off the phone and re-downloading from the iTunes Store - this does not work because it registers that the song has been previously purchased. There is not even the option to re-download the song from the cloud as a previously purchased song.
What else could I try?
iPhone 6
