Camera randomly picks up motion

I have recently noticed that my cameras randomly pick up motion. I believe when I first got them a few years ago, they picked up all motion. I am not sure when this problem started. One is in front of the driveway. It picks up my car coming and going about 75% of the time. It picks up my wife's car about 10% of the time. It picks up people walking up the driveway about 50% of the time. I called support and they had me do a reset on the camera which appeared to help but the next day it stopped picking up cars again. I see a lot of other posts with issues like this on their Ring Doorbell.Is this just a flawed product that works some of the time?