Blurred out people

My husband is having an affair with my next door neighbor and suddenly my ring doorbell pro can’t see them, at 5 am this morning it just shows blurs moving around. He also uses bright lights to go undetected, but how is he blurring himself out? Wi-Fi is the same, he doesn’t have access to my account… I’m only asking because it’s a safety issue, as we’re going through a terrible divorce.