Maya EmberGen Camera misaligned

I have a scene where the geometry is completely static, but the camera is animated. I’ve baked the camera and set everything up for rendering, but the final images don’t align correctly—the alpha appears slightly off.

I’ve verified that the Field of View matches between Maya and EmberGen, and both are set to a horizontal sensor fit. However, as shown in the images below, there’s still a noticeable discrepancy. I also rendered shapes from EmberGen and overlaid them with the Maya render, which reveals a slight offset.

Does anyone have suggestions on what might be causing this? Thank you.