My reversing camera packed up at about 9 months. The image first went blurred and then bright pink! It was replaced under warranty. I had a couple of weeks wait for the part - who knows what the current situation is.
Looking at your photo of the overhead view, it looks like the images from the other cameras are largely missing too. Assuming all the camera lenses are clean, maybe the software controlling the stitching together of the camera images is corrupt.
In any case, the dealer should fix it.