Nced's example reminds me of shift due to focus problems. That can come from a few sources. If the objective lens isn't collimated, that is, properly aligned to the optical axis, then the image will move around as the objective is rotated, if it is a front end OA. (Side wheel is another type of system that works some lenses internally.) Well made scopes won't do it.
However, if the either end of the scope has been bent, then the lenses at that end are no longer aligned to the optical axis and you are in the same spot. Both the AO feature and the eyepiece focus move a lens in and out along the optical axis and if collimation is off the centers will move off axis relative to each other as you move the lenses. The zoom feature moves a lens internally and if things aren't right, it can do it too.
I have such a "bent" scope, though, fortunately it is on the eyepiece end. I think it got dropped by a relative when I wasn't around, because I think I'd remember an accident that could bend a Leapers scope. Since I don't have reason to adjust the focus, I think
it isn't causing problems. The bend is pretty much vertically oriented. So in my case any shift it vertical, not like Nced's example, and may just "look" like some extra drop along the trajectory as seen by the shooter--or maybe even a flatter trajectory. Wow, that would be nice
. I haven't tried hard to figure it out: it is still on my CFX and it hasn't stopped me from doing some pretty nice shots when I needed to.