Wled esp32

Hi!
I have an ESP32 with WLED firmware and white 12V led strip connected to it via MOSFET. WLED config is set to PWM Led strip.
Works fine, I can dim it and use effects and it’s fine.

The problem is in HA script that I would like to run.

alias: WLED1 Strobe
sequence:

  • service: scene.create
    data:
    snapshot_entities:
    - light.wled
    scene_id: wled1
  • service: light.turn_on
    target:
    entity_id: light.wled
    data:
    effect: Fade
    brightness_pct: 100
  • delay:
    hours: 0
    minutes: 0
    seconds: 6
    milliseconds: 0
  • service: light.turn_on
    target:
    entity_id: light.wled
    data:
    effect: Solid
    enabled: true
  • service: scene.turn_on
    data: {}
    target:
    entity_id: scene.wled1
    mode: single0

So, when the camera detects a person I need LED strip to go in Fade effect for 6 seconds and get back to how it was before that.
It does work only if I don’t put brightness_pct: 100.
If I do have that option then “Fx” slider in WLED goes to 0 and there is no light coming from LED strip.
If I delete brightness_pct: 100 then it works fine… What is going on?