Please refer to the following steps to troubleshoot:
1. Check if the Xiaomi Smart Camera is online;
2. Restart the router;
3. Check if the device firmware version and Mi Home app version need to be updated;
4. Ensure that individual device control works properly;
5. Check if the system time on the phone is correct and not running too fast or too slow;
6. Check the execution logs to see if any errors or reasons for failure are displayed;
7. If the scene involves a gateway and sub-devices, adjust the gateway distance, move it closer to the sub-device, and ensure the sub-device is online.