generative modeling for Rhino
If you right click on the 'D' output of the flatten component and 'deselect all' everything is fine and the data deselects. However, when you reconnect any data back into the 'D' output of Flatten, you no longer get any data output like so:
If you connect a panel to the output D of flatten, you get 'no data was connected'
Attached is the definition that I was using.