Previewing revit geometry

I created a ‘select face’ node… then I selected my face (of a floor slab) in Revit. I am not getting an error, but I am not seeing the preview of the face in the Dynamo window. How do I get it to appear? I am trying to upload the file, but the system will not let me.

Try zoom to fit after ctrl+B .
Hopefully it will show up.