This is a tough nut to crack. All newly created elements in Revit are linked to the appropriate creation node inside Dynamo. The logic is that if you delete the node, or change the input, it automatically deletes the elements inside Revit so that you don’t get duplicated elements one on top of each other.
I don’t know of a solution, unfortunately but a temporary work-around would be the following:
1)Run your dynamo definition and create the elements.
2)Unhook the create walls node. That will most likely delete the walls in Revit.
- Go into the Revit UI and do an undo command ( ctrl+z )
4)select the next curve and repeat your definition
- rinse and repeat…
A much better alternative would be to select all the curves at once and create all the walls at the same time.