I have some fast spinning wheels with motion blur applied. I spend a couple of hours trying to figure out why my motion blur looked like the wheel was wobbling. In the end it turned out this issue was isolated to the live viewer.
Here are some screenshots of my setup.
Live Viewer:
Picture Viewer
Settings
I set the time sampling to maximum for troubleshooting purposes
Is this a plugin limitation or is there something I can do to fix this?