"Why won’t the ringtone I chose in settings play when i have a incoming call?: I see the ringtone in settings. I choose the ringtone and it plays correctly. I receive a call and my ringtone doesn’t play. I go check the settings. Settings has the ringtone selected I want to use yet it does not play on incoming calls?"
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Troubleshooting Ringtone Issues:
A. Start Here: Use Tones and Ringtones with your iPhone, iPad, or iPod touch - Apple Support
B. Add Back the App:
If this was created using an app, then reinstall the app. If it currently is installed, then uninstall it, and then re-download it form the App Store. If it Is not installed, then install it.
C. Contact the App Developer:
If this was created using an app, then contact the App Developer. You'll likely find their Contact Us info in the App's site of the App Store.