Counter-Strike: Source "light_environment" Shadow Issues

Recently I’ve been having this strange shadow issue whenever I use the light_environment entity:

https://imagizer.imageshack.us/v2/895x559q90/907/TOXNkR.jpg

I’ve tried using different textures, different lightmaps, and an endless amount of parameters for the light_environment, however, nothing seems to get rid of the extra/random boxes of light. It happens on any other map I create as well, just not as bad as this. Here is the compile log:

You can fix this by adding the -final parameter to VRAD.

To simulate indirect/ambient lighting from the sky, VRAD casts light rays in a number of different directions. This can cause some strange looking results, especially with a small lightmap scale. The -final parameter greatly increases the number of directions/rays, which looks better but also takes longer. As the name implies, you’ll probably only want to use it for your final compile before releasing the map.