I spent most of the day trying to fix the custom contact ringtones on my mother's phone. Every once and a while another contact's custom ringtone will just stop working no matter what I try. The phone calls come up as the contact calling, but the default ringtone always plays instead of the set one.
Steps I have tried:
Factory Reset - Worked for a couple calls, then stopped again.
Deleted Contact and Remade Contact
Deleted all ringtones and redownloaded
Disabled all cloud backup services.
Installed another Contacts manager.
Tried the number with and without a 1 infront.
Gave Contacts permission to everything.
Restart and dial *228.
Check for duplicate contacts anywhere stored on the phone.
Made sure the audio files were in the correct folder.
Tested a ringtone that came with the phone.
I believe that's everything I tried. I did notice that the contact with the broken ringtone that called had Verstat=tn-validation-passed after it in the drop down menu. I tried calling mother's phone and it listed my number without that. I don't know if the validation tag after it is messing with it or not, but just something I thought I would bring up.
Any other steps anyone knows to take? I'm baffled at how there's anything possibly left to try.