I had a couple of things that were causing the problem. The first was I was running a cloud machine and a stand alone work station with Rhino on one and Revit on the other. They weren't communicating properly so I now have them on the same machine. The second thing that I noticed was that by flattening the geometry leaving the node and grafting the input node resolved the problem (once I got the first issue fixed). The third thing was the Revit family. Lyrebird seems to be very particular about the families that you use.
What method are you trying to use to bring in the Revit geometry, Adaptive Points, Origin Points or Curves?