@Solla-topee Same problem here with my 510w

@Solla-topee 1. On the Tapo app > camera's Device Settings >Video & Display > Night Mode settings page, have you selected the Smart Mode? - YES 2. Does the issue happen when the camera works in Night...

While having motion tracking enabled the spotlight alarm doesn't turn on. As soon as I disable the motion tracking, spotlight alarm works again. I'm on the latest firmware as of today.