Motion blur errors when using vrayproxy particles

[Moriah]

Don't know if it's caused by a small particle size or something else, but when i convert prt particles with the ply2vrmesh, import via vrayproxy and render with motionblur i get all kind of "squareish" flickering splotches.

Without motion blur renders just fine.

Any suggestions?

Here's a small gif

[svetlozar.draganov]

Hello Moriah

Would it be possible to attach this scene along with vrayproxy-file for investigation?
Please let us also know what is the exact version of Vray/3DSMax you are using.

Thank you very much in advance.