You used zoom x and y, so that the scaling is not proportional. I don't think that's what you want. Then you moved the Pan X so far, that a part of the overlay is off the screen.
So, reset your zoom and pan settings and start from scratch. First you just use "Zoom", not zoom x and y separately, so that it scales proportional. Then you move Pan X (left/right) and Y (up/down) so that tha overlay is where you want it to be.