Filtered template sensor (filtered temp compensated soil humidity)

I have two functional parts. One filter sensor that works. And one template sensor that also works.

But I can’t figure out a configuration that would work to have a filter compensated sensor :frowning:

I tried adding a filter to the template, it doesn’t work. My new filter sensor from the compensated template sensor doesn’t work either.

I don’t know if I’m doing something wrong, or if I’ll have to go about it in a different way, like through some automation?

working Filter sensor

sensor:
  - platform: filter
    name: "filtered soil humidity Window"
    entity_id: sensor.sonoff_1001841336_humidity
    unique_id: sensor.sonoff_humidity_window
    filters:
      - filter: outlier
        window_size: 16
        radius: 16.0
      - filter: lowpass
        time_constant: 20
        precision: 2

working template sensor

template:
  - sensor:
      - name: "Temperature Compensated Humidity Window"
        unique_id: sensor.temp_comp_window
        unit_of_measurement: "%"
        state: >
          {{ states('sensor.sonoff_1001841336_humidity') | float + (states('sensor.sonoff_10018421f8_temperature') | float - 16) * 1.1 }}
        device_class: humidity
        state_class: measurement