Hi all
I’m trying to get some really good graphics for my horror game and I keep on setting the lighting to medium, then building the lighting but no change happens.
I looked at the log and it said that a lot of my light bulbs were stopping the visuals to build.
Anybody know what to do?
Thanks
-could you post the exact error/warnings that you get
-you could also use dynamics lights so that you dont have to build them -> just set them to “moveable” 
seems to me you have all your lights set to ‘stationary’. this wont work if all your lights are too close together, as you can only have 4 stationary lights overlaping each other at a time, due to the way the lightmaps are baked in to each of the 4 channels in a lightmap texture.
try setting your ambient lights to static, using a lightmass importance volume for dynamic stading through them, having only a few stationary lights for important light fixtures, and having one or two movable lights on smaller objects visible at a time.
Run through the documentation on lighting to better understand these errors, particularly overlapping stationary lights. Focus on the following sections: Essentials, Precomputed Lighting, and to a lesser extent Dynamic Lighting.
You’ll want to adjust light attenuation radii, switch some lights to static, or turn off shadow casting for certain point lights to get a satisfactory light setup. There is also a useful view mode for identifying areas with a lot of light overlap called StationaryLightOverlap you can switch to.