Purchased ringtones not working after iOS update
Is anyone else having issues with their purchased ringtones not working after iOS update?
iPhone 6 Plus, iOS 11.2.2
I had an issue on my iPhone X where a purchased ringtone worked, but would not work when I assigned it to a specific contact. I had purchased the ringtone a long time ago, and it turned out there was a newer version released in iTunes. Repurchasing the ringtone in its newer version solved the issue for me.
Use tones and ringtones on your iPhone, iPad, or iPod touch - Apple Support