Reverts to default ringtone by itself

[rw1255]

I added my own ringtone when I got the phone, and occasionally the phone decides it would rather use the default ringtone. I'll change it back a few times and finally it stays on the one I want. Why does it do this? Is there a way to stop it from having these spells?

[_alexdon_]

Is your ringtone stored on an external SD card? @rw1255

[rw1255]

No, I put it in the ringtones folder in internal storage. 

[rw1255]

I'll have to say this is really tiresome. I tried another ringtone, one that came with the phone, not one that I added, and that one didn't stick either. So now I wonder, is it possible to remove the Xperia ringtone? It doesn't appear in the ringtones folder.

[_alexdon_]

yes, it is possible. try to change the ringtone from safe mode, maybe you have an app interfering.