X4 overlays jump while zooming/panning

[eliwalks]

When I use overlays in X4 where the overlay graphic is zooming/panning, the overlay graphic jumps, even in the final rendering. It will zoom smoothly for a few seconds, then jump abruptly, then continue zooming, then jump again. So for example, I have text on an overlay and the text is zooming and panning to the right. While doing this, it is awkwardly jumping up and down slightly as it moves to the right (both in the preview window and in the final render). This jumping is in the final render of the file: if I play the video on another computer it still jumps there. This seems to be happening whenever I zoom with an overlay.

While running X4 on an older computer, I didn't have this issue. Is there a setting? Any idea why this might be happening?