In the image below, the Springs.DirectShape node shows 181 elements but only creates 138 elements in revit. The preview in revit shows everything but again not all the elements are there.
One more question (same image), I am having to run the script a second time in order to push the Mark to Element.SetParameterByName. Does this make sense?
Could you try and select the elements by id? I am wondering if Dynamo is pushing some geometries to Revit and Revit tries to create a directshape with them but fails, creating “empty/invisible” elements instead