Lightbox Zoom Weird on Mobile

Experiencing this issue on multiple themes, including Twenty Seventeen, so I’m guessing it’s not a theme conflict…

The lightbox “pinch and zoom” on mobile doesn’t seem to be working properly…the image seems to move off to the left and gets replaced with a black background, and when you try to move it over, the image appears but it’s distorted.

Is this a known bug? Any fix available in the near future?