Sky/NowTV Dune Prophecy??

You could try asking Sky/Now TV customer support directly and ask them? Maybe they have some insight into what the issue is.

Hi, Chrisk4 

Thanks for posting here in the Roku Community.

We appreciate you for sharing with us your concern with the Dune: Prophecy content.

For this matter, we would advise you to contact Sky/NowTV and inquire further about your concern since streaming apps are the ones that provide the content and manage it. They are in a better position to answer and guide you further with the information you need.

We hope this helps, and let us know if you have further concerns or inquiries.

Thanks,
Kash