Schedy configuration with an x: break/next - what am I doing wrong?

Configuration
1

Wonder if anyone can help - i’m using schedy and trying to get this code to set mode to ‘OFF’ is chance of precipitation is >=10. No matter what order/indentation I put this in, the precipitation is just ignored. The time of day and temperature setting is working correctly. What am I missing? Going crazy!

    conservatory:
      friendly_name: Conservatory
      actors:
        climate.conservatory:
          #hvac_mode_on: false
          supports_hvac_modes: false
      watched_entities:
      - "sensor.probability_of_precipitation"
      schedule:
      - v: "OFF"
        rules:
        - weekdays: 1-7
          rules:
          - rules:
            #don't turn on when probability of raining >= 10
            - x: "Break() if int(float(state('sensor.probability_of_precipitation'))) >= 10 else Next()"
            - { start: "08:00", end: "21:00" }
            - v: "27"
          - v: "OFF"

Thanks for any pointers. I had to do the int(float) thing or I get errors in the log due to the way the string is presented to avoid log errors.