If videos recorded by the Xiaomi Home Secure disappear after download, please try the following steps:
1. Uninstall the Xiaomi Home App and reinstall it to ensure that the latest version is used and any temporary cache or glitches are cleared.
2. Try logging in on a different phone to see if the downloaded videos appear correctly.
3. Check whether privacy authorization has been withdrawn. If privacy authorization is revoked, videos can disappear.
4. Restart the camera and the App.
5. If the issue persists, please submit feedback through the Xiaomi Home App.