I am copying here what i posted on the tech forum. The glowing asteroids are caused by those particular asteroids not having a -da.dds texture file. Here is a list of the rocks missing -da.dds files.
AsteroidBig00
AsteroidSmall00
AsteroidSmall01
AsteroidSmall02
AsteroidSmall03
AsteroidSmall04
AsteroidSmall05
AsteroidSmall06
As a temporary fix until IC releases a proper patch you can do this.. Copy the AsteroidBig-da.dds from the textures folder to your desktop or where ever you wish to work with it. Then rename it to for example "AsteroidBig00-da.dds" Then copy the renamed file back into the textures folder. You need to repeat this for each asteroid missing a -da file. The -da file is just a 64x64 pixel black texture with an alpha layer. There is no difference between that texture, and the asteroids that do have a -da that i can see.
Hope this helps others with similar glowing rock issues.