I've came across a shader bug while making a sky shader. I was playing around with the hellsky2 shader and decided to implement lightning in it, worked fine. So instead of having the lightning in the hellsky2 shader I decided to make a separate shader with the EXACT hellsky2 shader but with the lightning shader implemented, I named it hellsky2lightning and when I tested it, the sky was "giving off" lighting to the map, it was just dark. The sky worked perfectly except for one thing, the lighting. What's the problem?

This is the shader:
textures/skies/hellsky2lightning
{
qer_editorimage textures/skies/dimclouds.tga
surfaceparm noimpact
surfaceparm nolightmap

q3map_sun .9 .9 1 70 65 78
q3map_surfacelight 60
skyparms - 512 -
{
map textures/skies/dimclouds.tga
tcMod scroll 0.02 0
tcMod scale 1 1
depthWrite
}
{
animMap 2 textures/skies/zdh_lightning1k1b.tga textures/skies/empty1.tga textures/skies/empty1.tga textures/skies/zdh_lightning1k2b2.tga textures/skies/zdh_lightning1k3b.tga textures/skies/empty1.tga textures/skies/empty1.tga
blendFunc GL_ONE GL_ONE
rgbGen identity
rgbGen wave inverseSawtooth 0 1 0 2
tcMod scale 3 3
//tcMod scale 5 5
}
{
map textures/skies/dimclouds.tga
blendFunc GL_ONE GL_ONE
tcMod scroll 0.02 0.01
tcMod scale 3 3
}

}

It's the EXACT same shader of hellsky2 but with the lightning shader implemented.