Material SubUV Function Jitter

I am getting some serious jitter when I use the SubUV Function to create an animated surface material.
I used the exact setup illustrated in the docs:

I have my #x# values set correctly so it is mapped correctly, there is just some jitter in the placement.
You can see the problem using and of the SubUV textures in the example files.
This is not an issue with the Particles SubUV, just using the SubUV Function for a regular material.
Hopefully this will be fixed soon, or someone can tell me what I am doing wrong.
Thanks so much!

After further research it seems the jitter happens more when you get closer to objects with the SubUVFunction driven material.
From a distance, there is no jitter.
Very strange indeed.

Post bug reports on AnswerHub please.