It happens sometimes, but it should be pretty rare. Maybe slightly more common, my rear camera won't activate and usually opening and closing the tail gate a little harder will "fix it". Same thing with my F150.
However, on the rare cases where that doesn't fix it, it always works the following day. It could be an update or something like that, who knows, but if it only happens once in a rare while, you should be fine, not sure the dealer will have any idea how to fix it unless you can make it to the dealer with a black screen. Typically it will fix itself the next day and the dealer won't have a way to figure it out.