This song is not synced across all your devices
I am getting the above error when accessing music content which I had purchased outside of iTunes. The songs were synced to my apple music. However I can't access them anymore because the computer I used to have connected is broken. When I go into my apple music library on my phone I can delete the music that is grayed out from my library, re-add it from Apple music, only to get the same error again.
My question: how can I make apple music forget I ever had previously synced music and just allow me to add whatever I want to my library so it isn't grayed out anymore?