Our last trip out my back up camera would go blank when we stopped for then about 15 seconds. It would come back on after we started moving again but would come on a side view.
I found in the settings there is like a sleep mode. It was set for 20 seconds. I turned that off and sat with the truck and camper idle for 10 minutes and all good.
We will be traveling next week so we will see how it does when moving.