While In the Switch app, in the storage/emulated/music folder, there is a list of songs I'm converting from .wma to mp3. I convert them and there are .wma and mp3 copies. I select a couple of the .wma files, click ok, and then select remove. I go back to the music file on the app. But the .wma files are still listed. Why? I selected to remove, but they are still in the folder.