I have a lops graph that pulls in a USD from maya,rendering in Redshift (I don't think redshift is the problem).
My object is creating different extreme motion blur streaks on every frame. It's like it has the correct position at the integer frame but shoots off randomly on the subframes.
My usd is not subframe sampled, so it should be stable, I'd expect linear blur.
It's very odd. I have tried a usd with euler filtering.

In maya the object is constrained to a charachter.
Any help appreciated.

Can you post a hip file? What happens if you enable subframes in the timeline and go to a fractional frame?