Window Blinds Automation not Working

Configuration Zigbee
1

Hi. I’ve just installed an Aqara E1 Window blind motor using ZHA and am trying to get it to work via automation but can’t, so I’m after some help please.

I added the device in ZHA, changed the analogue_output > max_present_value to 100 (as mentioned in many other posts).

I can work the blinds through UI slider with no problem but the below test automation to half open the blinds does absolutely nothing. Any help appreciated, as it’s giving me a headache.

- alias: TEST BLINDS
  id: test_blinds
  trigger:
    platform: time
    at: '12:38:00'
  action:
    - service: cover.set_cover_position
      target:
        entity_id: cover.living_room_blinds
      data:
        position: 50
2

This is the log book trace result which I don’t understand why a window blind motor wouldn’t support this service:

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3

MOVED to general configuration forum