Chameleon cross-platform scale problem

I'm not sure if anyone has come across this before. I have a Rhino file using centimeters units and a Revit file also using centimeters units, but when I use Chameleon to import objects from Revit to Rhino the objects come in 1000 times smaller than they are dimensioned in Revit.

I would appreciate any advice.

Ive recently started to test out various Grasshopper to Revit workflows, so I might be overlooking something obvious.