I also have a very similar problem on both of my 2014 Fusion Energis. My Wife's car started acting up shortly after a warranty recall was performed on I think the display. That work was done 3-4 years ago. Mine only started acting up a few days ago, I get the black screen that says camera not available, contact Ford service (not exact wording). I also get a rear view picture where the guidance lines are gone. When this happens the image displayed is lower quality and the image is backwards. So when I am against the curb on the right it shows that image on the left side of my screen. I did a master reset and the problem persist. Any thoughts??