Google Nest Hub can't play HLS,But the HLS URL does work in HTML

1.We are debugging our smart home camera stream using Google Nest Hub.

2.We have access to device sync and passed the validator.This is our Device Sync response:

{
    "payload": {
        "agentUserId": "b4ad4e18-ab90-4b0e-bc02-264da5bb6469",
        "devices": [{
            "traits": ["action.devices.traits.CameraStream"],
            "name": {
                "defaultNames": ["Imilab"],
                "name": "camera1",
                "nicknames": ["camera1"]
            },
            "attributes": {
                "cameraStreamNeedAuthToken": false,
                "cameraStreamSupportedProtocols": ["hls"],
                "cameraStreamNeedDrmEncryption": false
            },
            "id": "gejiayu2",
            "type": "action.devices.types.CAMERA",
            "deviceInfo": {
                "model": "a1znn6t1et8",
                "manufacturer": "Imilab"
            }
        }]
    },
    "requestId": "8664974301718985362"
}

3.We provide the HLS address, which can be played normally using ffplay ffplay info or HTML, This is our demo HLS URL: https://cdn.cnbj2.fds.api.mi-img.com/cloud-storage-test/test1.m3u8.

4.But we can't use Google Nest Hub to play it. I recorded the debug video in the attachment. This is our camera stream response:

    {
    "payload": {
        "commands": [{
            "ids": ["gejiayu2"],
            "status": "SUCCESS",
            "states": {
                "cameraStreamReceiverAppId": "",
                "cameraStreamAuthToken": "",
                "cameraStreamAccessUrl": "https://cdn.cnbj2.fds.api.mi-img.com/cloud-storage-test/test1.m3u8"
            }
        }]
    },
    "requestId": "1625829984244045201"
}