Im sure it's probably a render option I need to turn on or off but I have an animation where we see a crane moving a sign. As the sign comes closer to the camera, the crane disappears. I keyframed the material to be transparent and also keyframed the eye ball (viewport visibility). Most of the objects fade out but these black wireframes are left behind. When I switch to Render Viewport nothing is there but when I actually render, the wireframes are present. Any ideas?