All but 1 camera casts to Chromecast

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Very frustrating situation…I have 10 IP cameras and I want to be able to cast them to my Chromecast.

All of them cast except one. And it’s of course the one that I want to cast the most. When I cast it, just a blue Chromecast icon shows on the Chromecast screen.

I use a script to open the camera feed on my CC:

alias: Living Room TV - Driveway Camera
sequence:
  - action: media_player.play_media
    target:
      entity_id: media_player.living_room_chromecast
    data:
      media_content_id: media-source://camera/camera.driveway
      media_content_type: application/vnd.apple.mpegurl
    metadata:
      title: Driveway
      thumbnail: /api/camera_proxy/camera.driveway
      media_class: video
      children_media_class: null
      navigateIds:
        - {}
        - media_content_type: app
          media_content_id: media-source://camera
description: ""

All cameras are the same Dahau model. I have them connected to HA via the Frigate add-on. RTSP and go2rtc. I can share the code if needed.

I’ve rebooted everything and still no luck. Thought I’d post it here in case anyone has any suggestions that I might have missed.