I’m getting an error with the category node. It worked in the past and now returns this error
Warning: Category.ByName operation failed.
The managed object is not valid.
and doesn’t work. I don’t think this is due to the 0.8.1 upgrade because I built it after
You using the drodown category node?
Yes, better to use a code block?
I’m not too sure, Dumb question, but do you have a Revit file open.
Hello Michael Ramsay,
Can you put the image of your Graph?
What version of Revit and Dynamo you are using right now?
Thanks,
Ritesh
The left is a blow up of one of the repeated nodes on the right. I’m working to simplify and clean this up but it was working for a long time before this current error. 
