What is entirely obvious to me is that the pictures are all taken at different angles, allowing different things to be seen. None of the pictures are taken at the same angle or position.
DD nonsense aside, it's obvious in those pics the object "moves' because the camera angle changes. First of all, it's not right next to the other objects, but much further back in the backgroud, over the ridge immediately behind the rocks in the foreground. It the one pic where it "disappears," it's actually right where you would expect it to be, behind the middle rock in the foreground as it goes from right to left with the movement of the camera. Of course, as the camera keeps moving, it "reappears" on the left side of the screen. What I don't understand is how someone can go to all the trouble to study those pics and add the captions and not realize this. Must be just trying to screw with people.