Additionally, just downloaded on my PC and playing back and I’m seeing it here.
You can see a quick flash over two of the guys face at top of screen and over his shoulder (the guy with glasses on the ladder looking at camera).
It looks very reminiscent of taking an interlaced source and scaling it causing frames in part of the screen to be mismatched alignment wise.
I’d grab a screen shot of it, but when I go frame by frame, you can see it, but once I stop scrubbing, it disappears. They are very brief (split second) flashes showing partial image mismatch. Sometimes it’s 1/3 the way from the top, other times near the top of the screen. It also occurs when the camera is moving quite a bit in vertical movement.