Extra keys error in the sequence of an action

1

Valid syntax, searched my arse off to no avail.

action:
  - choose:
    - conditions:
      - condition: template
        value_template: >-
          {{ states['sensor.study_sensor_temperature'].state | int >
             states['input_number.study_temp_threshold'].state | int + 4 }}
        sequence:
          - service: fan.turn_on
            target:
              entity_id: fan.study
            data:
              percentage: 60
    default:
      - service: fan.turn_on
        target:
          entity_id: fan.study
        data:
          percentage: 30
mode: single

Message malformed: extra keys not allowed @ data[‘action’][0][‘choose’][0][‘conditions’][0][‘sequence’]

2

Sadly, I had saved it this way at some point and didn’t realize it. I noticed the fan speed up, exited and re-entered the automation editor and there it was. Here’s the whole thing for what it’s worth:

alias: 'Study auto fan: On'
description: ''
trigger:
  - platform: state
    entity_id: binary_sensor.study_motion
    to: 'on'
condition:
  - condition: state
    entity_id: switch.study_auto_fan
    state: 'on'
  - condition: numeric_state
    entity_id: sensor.study_sensor_temperature
    above: input_number.study_temp_threshold
action:
  - choose:
      - conditions:
          - condition: template
            value_template: >-
              {{ states['sensor.study_sensor_temperature'].state | int >
              states['input_number.study_temp_threshold'].state | int + 8 }}
        sequence:
          - service: fan.turn_on
            data:
              percentage: 90
            target:
              entity_id: fan.study
      - conditions:
          - condition: template
            value_template: >-
              {{ states['sensor.study_sensor_temperature'].state | int >
              states['input_number.study_temp_threshold'].state | int + 4 }}
        sequence:
          - service: fan.turn_on
            target:
              entity_id: fan.study
            data:
              percentage: 60
    default:
      - service: fan.turn_on
        target:
          entity_id: fan.study
        data:
          percentage: 30
mode: single