Revolution Slider – strange Ken Burns behavior

Hi everyone,
Has anyone experienced an issue with revolution slider where the Ken Burns effect will only zoom/pan outward from the upper-left corner, regardless of position settings? For example, I used:
Start position: center, Start fit: 120%
End position: center, End fit: 100%
Easing: Linear.easeNone, Duration 5000ms

I would expect for the ‘camera’ to zoom out slowly from the exact center of the image, but instead it zooms out beginning in the upper-left corner. It’s like the ‘start position’ is STUCK in ‘left top’.

Any suggestions? Thanks!