Cam picking up cars passing from street

I have the 2C cam mounted near the front door of the house. Even with activity zones, it won’t pick up people until they are relatively close. Yet I get a notification when a car in the street passes. How to I eliminate the notifications for the cars driving by, yet still get notifications when people are walking up? Cam is set up for human detection.

I’m getting the same issue (also set to human only) im wondering if it has coincided with the latest software update (end of July)