Sorry, I didn’t mean “scale.” It’s actually really large actors(in Unreal cm). That is the default Unreal cone at about 100,000 scale, and the ocean below it is the Earth in real meters. The section you are looking at in the pictures is the Pacific Ocean between California and Hawaii.
I put ‘scale’ in the title when I think I meant ‘large actors.’ The problem happens no matter if it is small actors scaled up or really large actors.