My phone rang this morning and a different ringtone was playing. I have the digital phone (i know boring) ringtone set as my default. When the phone rang it played a different ringtone, not sure the name of it but it sounds like it is a generic one that came preloaded on my S5. Then later someone else calls and it's the same ringtone (not digital phone). So I go into my settings to see if the ringtone was accidentally changed and it is set to "digital phone". So i start clicking on other ringtones and it seems that more than 90% of my ringtones all play this same ringtone. Wondering how this happened??? Any ideas on how to fix without wiping phone?