Hi, I had exactly the same issue when I changed skd identifier (like "0537e22c-5399-2427-f2ef-e323f069e02e") to a custom identifier like "CONTENID-0000-EPISODEID-0000-DOWNLOADID-0000". Nonetheless if I change identifier to "C0000-E0000-D0000" and it works again. Eventually I returned original identifier allowed by the license.