lighting_environment

So, I am working on a map for a friend, and I have some light sources, but when the map is compiled and played, it shows the map in Full Bright. I do have light_environment and light setup around the map, but what is causing the map to go Full Bright? Picture files attached.

I was thinking of using this skybox in a map I am making, but since it was created for the “Target” training map which is well illuminated with non-environmental light entities, it has no prior used environmental light values attached to it (at least none recorded on the dev wiki). How could I...

I'm currently editing a modified version of pl_barnblitz, but I'm getting tired of trying to understand the optimization problems. The biggest issue I'm having is that the map appears to be rendering without any light_environment, but I think that has to do with the optimization issues, a leak...