Template trigger not firing, using sun and a for option

Configuration
1

Hey, I hope someone can point me in the right direction with my automation not triggering.

I have an automation to synchronize a light (my Christmas decoration outside) with some other lights (the ones in the rooms seeing the decoration). I use templates to trigger the automation, because I re-use a blueprint, which I am using often in my home. This was working perfectly.

Now, I’d like to restrict the time for my decoration to shine only in the timespan between 7:00 in the morning and some fixed delay after sunset. Because in that time, my (still offline) blinds would be open. I extended the trigger template and tested it in the developer tools and it results in what it should. I then copied the template to the automation editor and saved it. However, only the on trigger seems to work, while the off trigger only works when I switch the inside lights.

Could it be that the sun is not listened for changes for some reason?

Here’s the trigger section of my automation:

mode: parallel
trigger_variables:
  trigger_entity:
    - light.wohnzimmer_sofalicht
    - light.wohnzimmer_esslicht
    - switch.kuche_licht_state
trigger:
  - platform: template
    id: 'on'
    value_template: |
      {{ expand(trigger_entity)
         | map(attribute = 'state')
         | select('==', 'on')
         | list
         | length
         > 0
         and (
           is_state('sun.sun', 'above_horizon')
           or timedelta(hours=0.25) > now() - states.sun.sun.last_changed
           or now().hour >= 7 and now().hour < 12
         ) }}
    for: '00:00:00'
  - platform: template
    id: 'off'
    value_template: |
      {{ expand(trigger_entity)
         | map(attribute = 'state')
         | select('==', 'on')
         | list
         | length
         <= 0
         or is_state('sun.sun', 'below_horizon') }}
    for: '00:15:00'