Hi again,
It turns out there is a bug in the latest versions of QGR that prevents video from showing on Mac OSX Catalina by the looks of it. If you experience the same you can either download an older version, or look for a custom build. I found the fix here:
[URL unfurl="true"]https://github.com/patrickelectric/qgroundcontrol/releases/tag/test-mac-video-fix[/URL]
It now works fine, but please note: I get the same error messages on the radio, and I can't use the QGR interface to take-off and land, I have to use the controller buttons.
