TLDR/
Is spillway scheduled on your Intellicenter? For my setup, spillway is in a circuit group containing pump feature circuits. I have two pumps, one only circulates spa water with 8 jets. The other pump is the pool/spa pump (6 jets) filtration, heater, etc.
The spillway circuit group has 3 feature circuits (spillway, spa pump, pool/spa pump).
Separately, I have a circuit group named all-day (24/7) that contains the Pool circuit and a pump feature circuit with the same rpm speed. In the winter, I remove the Pool circuit which turns off the SWG (No Lights) but still runs because of the feature circuit pump. I don’t remove the SWG in the off season.
With all of that said, Shagy may be running his spillway without the Pool circuit on which turns off his SWG (no lights). Which Shagy can only do if there are pump feature circuits created. OR… I don’t know what is going on with Shagy setup.