I have seen this problem on many of my renders and wondered if there’s a common solution or if it’s just a bug. If I stop a render mid-scene and then continue the first frame often has vector blur issues. Even with very little or no movement the compositor vector blurs the scene randomly. The following images show a place where I stopped rendering (first frame) and then continued (the second two). Up until now I’ve had to start my renders a frame early so the mistake is on the previous frame. Any tips?