Weird lighting issue in pure dark arena

Dafa

Hi,

I have exported this arena from a .fbx (3D Object) and imported it into DAZ Studio. My first issue was that the scene was completely black, which is the reason why I'm adding lights to the scene. However, after adding some spotlights and greatly increasing the Luminosity of the spotlight, I came to an issue where the lighting seems to be slicing itself between other light sources. It looks nasty. I need help to fix this issue.

 

I know the lighting is bad right now but I had to stop to try and fix this issue.

TheKD

Looks like there is shading artifacts everywheres.