Error Loading Skin: File Not Found
Here's an odd one: I purchased JW Player 6 Pro in January 2013, then upgraded to Premium in February 2013, as I needed to use the player on two websites. On one of the sites, I constructed a playlist file and revised an older Bekle skin to more closely match the site's appearance (this particular website hosts a weekly live stream, which is then archived; four archive shows are then featured using the playlist on the site's Archives page). The whole thing worked great in January, but when I upgraded to JW Player 6 Premium, the exact same skin will no longer load. I've had to retain the older License Key and earlier JW Player 6 purchased in January, so that that page's playlist will load correctly.
Because of this, the website now contains two JW Player folders, one labeled "JWPlayer6", and one labeled "JWPlayer6-Previous". Here's a look at the working Archives page, using that slightly older ("Previous") JW Player 6:
And here's an exact duplicate of that page, with the only differences being the new License Key, and pointers to the "JWPlayer6" folder contents (rather than "JWPlayer6-Previous"):
All other things being equal, and they are, what changed in the newer version of JW Player 6 to disallow proper loading of my playlist skin, and what can I do about it?