ViewFilter.Create Rule

revit
archi-lab
dynamo
views

#1

I am trying to create filters by workset for our coordination views to turn all Electrical one color, All mechanical another color, etc. I had this graph working just fine for about a week and this today I tried to run it on a job I had already had it functioning on and now I get this error with the ViewFilter.CreateRule node:
(Warning: ViewFilter.CreateRule operation failed.
External component has thrown an exception.)
Please help