MQTT switch with flash icons instead switch

Configuration
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1

Hi!

I done configured a mqtt switch into home assistant for a 4Gang Zigbee switch, but instead of a toggle switch icon, I got two flash icons. I know that it can be solved with assumed state, but still, maybe I done something wrong in the config. Anyone have any idea about this?

  - name: Door Green Light Switch
    state_topic: "tele/ZigBee_BridgeE/DB8A/SENSOR"
    command_topic: "cmnd/ZigBee_BridgeE/ZbSend"
    value_template: >
      {% if value_json['ZbReceived']['0xDB8A']['Endpoint'] == 1 %}
      {%- if value_json['ZbReceived']['0xDB8A']['Power'] == 1 -%}
        {"device": "0xDB8A","send":{"Power":1},"endpoint":1}
      {%- else -%}
        {"device": "0xDB8A","send":{"Power":0},"endpoint":1}
      {% endif %}
      {% else %}
      {{ states('switch.door_green_light_switch') }}
      {% endif %}
    qos: 2
    payload_on: '{"device": "0xDB8A","send":{"Power":1},"endpoint":1}'
    payload_off: '{"device": "0xDB8A","send":{"Power":0},"endpoint":1}'
    retain: true

And another question, because I took this code from a website, what is that type of condition where you use {%- xxx -%}, that middle line usability, what this means?

Update: it is not working even with the assumed state
Update2: the state of the swtich it is always Unknown

Thank you in advance!

2

Solved!

I needed to add the first element after ZbReceived