I’m trying to create a function to create a track in Dynamo, with the eventual aim of being able to reference points in the Revit massing environment so I can send the completed geometry back in. I’ve made a Designscript object which does what I want, but when I try to run it as a function I get nothing. The code is pretty much identical in both instances. The attached file shows my predicament. The grouped objects are the ones not working (on either of my computers) both running Dynamo 0.8.1 Any help would be much appreciated.