Alright, here's some more details to explain what I'm trying to do here
I'm using Corona 1.7 (oct 2017 build) with 3DS Max 2018.
1 - I made a quick and simple animation with sporadic movement by making some teapots fall down on eachother

2 - I enable the vector blur pass, and run with default settings (apart from turning off filtering)

3 - I render the vector blur pass

4 - I export as 16bit .tiff w/ transparacy, and open in After Effects where I apply the RSMB Pro Vectors effect, and the resulting blur looks like this:

I expect the blur to somewhat match what the 3D blur would output, but this is not working correctly for me.
It would be nice if someone would share some insight in how to get it to work with RSMB, if possible. I don't really understand exactly how this works.