I agree with you that it looks off. What I was trying to point out is the way the video is captured. What we see as one frame is really not a single image. It is a scan. The scan works from one corner and moves to the opposite corner line by line. Of course it happens very fast but not fast enough for what we are talking about. Halfway through a scan something could have changed in the area already scanned. Picture the scan as dots being recorded like a printer. It works its way down the page to complete the picture. Then starts over again Everything could have happened just like you said. I am only pointing out that we have to be willing to consider this possibility. This was explained to me years ago. I am not an expert. i am just sharing what I learned at the time. I am only saying it is a possibility that we should not toss away because we don't lilke it.