I have an animation that I submitted for the omniverse Machinima contest and noticed that the wheels that was rotating seems to be popping out. It also looks like the wheels would motion blur more or less at certain points. I’m not sure if this has anything to do with Quaternion rotation from Blender to USD Machinima, but figure I point this out.
You can see the pop best here. I added a distortion effect to mask it a little.