When I put my 2018 Tesla Model X in reverse, the entire screen shows what's behind the car. But a few weeks ago, when I put the car in reverse, the screen showed what's behind the car in the upper half of the screen only. See the attached picture. I called Tesla Support and they indicated it was a bug introduced in an update. Haven't had any updates come through for a while. Does this mean that most Tesla Model X cars have this problem? Anyone else exhibiting this behavior?