Lumi illuminance sensor is not quite 100% reliable

Yesterday afternoon my automation to Close Window Blinds at Sunset triggered. Could not figure out why. Today it happened again. The Lux sensor was >50,000 lux but today I noticed it reported 3 lux for about 30 seconds. I’ve modified my automation trigger and added ‘off for 2 minutes’…

Soth Patio Lux

# South Patio Lux
  - platform: template
    sensors:
      south_patio_lux_override:
        friendly_name: "South Patio Lux Override"
        value_template: "{{ states('sensor.lumi_lumi_sen_ill_mgl01_ef23773c_illuminance')|float > 80 }}"
  alias: Blinds - Night
  description: ''
  trigger:
  - platform: state
    entity_id: binary_sensor.south_patio_lux_override
    to: 'off'
    for: 2 minutes

  action:
  - data:
      position: 97
    service: cover.set_cover_position
    entity_id: cover.iblinds_window_blind_controller_level
  - delay: 00:00:02
  - service: cover.set_cover_tilt_position
    data:
      tilt_position: 97
    entity_id: cover.kitchen_blind_2
  - delay: 00:00:02
  - service: cover.set_cover_tilt_position
    data:
      tilt_position: 97
    entity_id: cover.kitchen_blind_3
  - delay: 00:00:02
  - service: cover.set_cover_tilt_position
    data:
      tilt_position: 97
    entity_id: cover.living_room_window_blind
  - delay: 00:00:02
  - service: cover.set_cover_tilt_position
    data:
      tilt_position: 97
    entity_id: cover.living_room_patio_door_blind
  - delay: 00:00:02
  - service: cover.set_cover_tilt_position
    data:
      tilt_position: 97
    entity_id: cover.bedroom_blind
  mode: single

Also added this:

  - condition: template
    value_template: ' {{ (as_timestamp(now()) - as_timestamp(states.automation.window_blinds_sunset.attributes.last_triggered
      | default(0)) | int > 72000)}}'

so after running it cannot run again for at least 20 hours.