Error message "Cannot Open - This content is not authorized"
I have several CDs that a I imported into Apple Music on my desktop. I am paying for iTunes match so that I can listen to them on my iPhone. Recently, several albums started getting the error message above when I clicked on <Play>.
I wonder if this is because I briefly signed up for Apple Music. I dropped it. Is it possible that iTunes can not tell what music I imported and what music was downloaded while a member of Apple Music? (I tried deleting the entries for music added while a member of Apple Music) How can this be fixed? I also tried executing the update cloud command, thinking that it would force Match to recognize added CDs.
I also noticed that some music can still be played on the desktop that can be played on the iPhone. There is also music that I cannot play on the desktop that was originally added on the laptop (which I still own).
What can be done to fix this?
iPhone 8