Renders not submitting on Rebus

[cum. m+d]

Hey guys,

I am using Maya 2015, Extension 1 SP5 with Vray 3.30.01
On our small renderfarm using Deadline 8. It works.

However, we can't seem to submit the render on the farm. The below keeps happening, at first I thought it was our scene. But I realized that even a brand new empty scene shows the below. Furthermore, we aren't using any Realflow mesh in our scenes. We are using Vray clipper as far as we know & round edges on materials. But it still doesnt make sense. is anyone facing this same problem?

import rebus
reload(rebus)
False True
# Warning: Unknown object type: RealflowMesh #
# Warning: Unknown object type: bifrostContainer #
# Warning: Unknown object type: xgmPalette #

[Morbid Angel]

did you ask their support? You are welcome to try on my farm, lmk and I will send you the info.

[beenyweenies]

You probably need to do File>Optimize Scene and check Remove unknown nodes at the bottom.

It's possible that one of your scene objects, or even the entire scene, was opened on a computer that had those items installed, and for reasons I will never understand this can get stuck in the MB file sometimes.