I’ve just had to replace my phone with an iPhone 12 running iOS 27.0.1. The problem is that not all my music was copied to the new phone, in some cases some tracks from an album were and some were not. I have re-started both my iPad and phone, both devices are signed in to the same account and both have the Sync Library option set on.
I am reluctant to turn off/on the option on my phone in case all the music gets wiped.
Any suggestions on how to sync all my music would be appreciated.