I'm curious as to what happened. As I mentioned earlier, the player was working wonderfully with the playlist I had created. Something must have happened while I was configuring the rest of the site to change the playlist location, or something to cause it not to work right.
Regardless, how can I tell where the actual playlist file is located, so that the entire playlist is playing, not just a single song like you have in the shortcode above? Is there a way to link directly to the XML file?
I even tried deleting an audio or two, creating a new playlist, re-uploaded the songs, but to no avail. It still shows the same error message. I even tried deactivating the JW plugin and reactivating it, along with deactivating all of my plugins and leaving JW Plugin activated. Nothing I've tried has made a difference, it still says "No playable sources found."