A person pressed the doorbell and I heard it and I didn’t open the door. (police say don’t open your door for a stranger). Later, I checked the app. But there is no video of the person pressing the doorbell or walking towards the door. There should be video of the person pressing the doorbell and walking towards the door. . And a small motion detector should have logged the event (a motion detector is near the door). The motion detector didn’t see the person . But there is a video of the person walking away . I can only see their back. The person waited at the door for a few minutes and then walked away