Wyze sprinkler controller and Hunter rain sensor

I have just replaced my 13 year Hunter SRC controller with a Wyze sprinkler controller. It works great. However, when I wire in my Hunter rain sensor to S1 and VAC {-} the controller skips every schedule saying sensor skipped.

My Hunter controller has never, in many years, skipped a water schedule because of the sensor. I think the sensor is not working properly.

The wiring for the Hunter controller has 2 wires one going to the valve common the other to RS input. The Hunter documentation indicates that the switch is normally closed unless activated.

Is the Wyze controller looking for a normally open switch input from the inactive rain sensor?

Thank you

Bernie

Very little documentation on the Wyze side for this product, for now I would try swapping the two leads wires.