Eufy Camera 2 not detecting human motion

My camera is not detecting human motion. However it is capturing every car driving by. I have played with the setting sensitivity (put it all the way to 7, and back down), however there is no change. So I get 1 million alerts for all the cars that drive by, but none for when my kids come home or when packages are delivered. The one in the backyard works perfectly. Anyone else experience this? What is the resolution? I’ve been on hold with Eufy for an inordinate period of time and would really like to get this question answered.