Hyperion Source Changes after restart

Is there a way to make USB capture the only option for source? I don't use the home assistant source, not sure what it does. After a restart of the raspberry pi or when I switch off "component all" in home assistant it reverts to the home assistant source which then makes my leds display white and not the dynamic screen matching effect of the usb capture. If I can't make it the only option, is it possible to set a default? As we get frequent power cuts it's annoying to go back into the hyperion dashboard to change every time, would be good to automate.

Yeah I did read that but not sure how to adjust the priority, can you help?