Advanced motion detection not working

Hope you can help!I've updating to advanced motion detection zones on my ring doorbell 3 (battery) and I'm getting constant motion detections for cars driving past which are clearly outside of the detection zone. I've purposely set the edge of the zone inside my property but it constantly picks up cars. Before the "upgrade" detection was reasonably reliable and no cars or pedestrians on the path would be detected. Now it's a joke! See attached pics for zone and detection.In addition we just had a delivery and it completely ignored the person walking up to our door, , it's almost like the detection zone is the bit it ignores now?!Has anyone else had similar issues. Any help gratefully received as I'm pulling out what little hair I have left.Thanks, Andy