Python node: transaction weird behavior

Packages
1

Hi folks, I’m not sure if this is an issue with Python, Revit API or Dynamo, but I have this:

open Revit project, start Dynamo, open definition, run definition: all is fine and running.

make another hit on the Run command: Python node returns an exception saying that a transaction is needed…why not the first time?

closing Revit, run again, works at first…weird or logical?

2

What are you doing in your python node?

3

CopyElements method. get stuff from linked file and paste in the active document. first try works great, second ask for transaction.