Downloaded ringtones not showing up on android

This is possibly not relevant but the 'Sound' screen shows the 'Default Now the Custom Ringtones are showing up when I select 'using media storage' & I can successfully use them. I had a problem using downloaded music as a ringtone on my G6+. Re: Revert to Android 8 from 9 on Moto G6. 4 

Music makes the world go round and we all like to be up to date with the newest songs on our mobile device, not to mention showing off that you have the latest ringtones when your android or ios device rings.App security best practices | Android Developershttps://developer.android.com/topic/security/best-practices