If you edit a song after you add it, I can see why it would disappear from say Windows Media Player.

If you are trying to EDIT PROPERTIES with Windows File Explorer then I'm going to write this doesn't always work. I think Microsoft is improving but for such an edit I think we need to use an editor appropriate to the file type.

I can't see where you mention if this is a MP3 file so I can't give the nod to editors or players.