Alembic Motion Blur Issue

Hi,

I’m doing a Maya to Unreal workflow utilizing alembics, but I can’t seem to get the motion blur to look proper.

My sequence is on 24 FPS and motion blur settings in my cine cam are set to 0.5 to achieve the 180 degree shutter look. However, the motion blur seems to just turn into a constant “linear blur”, if you will, while this character is walking. I think the camera movement (which is essentially tracking her in terms of movement, not rotation) on top of the alembic moving may be causing issues?

I’ve tried toying with every motion blur setting as well as various CVars. Normal objects work as intended with the motion blur, it’s just the alembic causing issues. I’ve tried all 3 of the motion vector import options as well.

Increasing temporal samples did not help.

Any other ideas?