I have split the outputs to show both a single family and the nulls from the list of families.
I guessing this is something that Clockwork could change in the python nested inside of the FamilyInstance.ByPointInView.
The range should start at zero, will fix that. And the List from family types has 8 unique items from the document.
I would upload the .DYN and show the list, but I’m a New User and that’s a no no apparently. Cheers again for looking at this.