Sonos keeps repeating a local sound file

Configuration
1

I have this code running en automation fires of fine, but on one of the 2 defined sonos speaker it keeps repeating the sound. Anyone have any idea why?

- alias: 'Manual - Alarm triggered'                                                                                                   
  trigger:
    - platform: state
      entity_id: alarm_control_panel.home_alarm
      to: triggered

  action:
    - service: notify.mobile_app_xxxxx
      data_template:
        title: 'Alarm'
        message: >
            Alarm triggered - Siren
        data:
          push:
            sound: "sirene.wav"
            
    - service: media_player.volume_set
      data_template:
        entity_id:
        - media_player.keuken
        - media_player.woonkamer
        volume_level: 0.1

    - service: media_player.play_media
      data:
        media_content_id: http://x.x.x.x:8123/local/sirene.mp3
        media_content_type: music
      target:
        entity_id:
        - media_player.keuken
        - media_player.woonkamer