Can't edit because green/white screen

When I drag a video in to edit, it only shows a green or sometimes white screen and I can’t edit anything.

Does anyone know how I can fix this please?

Thank you.

Tell us about the source video properties?

Can you provide a sample file to test?

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The beginning of the file name starts with 9HD (Television Channel), Canberra (Australia).
Probably has encryption built into the file, and no, we can’t help you. Shotcut is designed to work with files other than encrypted television programs.

This is in the Shotcut FAQ:
Post Only Your Own Stuff

You may not post anything digital that belongs to someone else without permission. You may not post descriptions of, links to, or methods for stealing someone’s intellectual property (software, video, audio, images), or for breaking any other law.
https://forum.shotcut.org/faq

https://shotcut.com/FAQ/#all-i-see-is-white-or-green-instead-of-video-and-i-know-there-is-video-in-this-file