People not being picked up by the camera during the night

We have milk delivered during the early hours, normally 01:00 ish. The camera is not picking this movement up. Why? All other movements are detected OK.

Hi @user30955. Which model of Ring Doorbell or Security Camera do you have? Do you have motion detection disabled under any of the Modes settings? If you have motion detection disabled under any of the Modes and you swap to that Mode, it would prevent your Doorbell from detecting and recording motion. I don’t want to speculate too much as we do not have any information about the motion event since it wasn’t recorded.