I am using RWE Pro. The route is KCS Shreveport Sub as an example. This happens on all scenarios. I am using the original AP Weather Pack with APEP Fair Clouds. This is something new. Up until a few weeks ago everything was normal.
When starting TSC through RWE in 64 bit in the disabled mode I get normal sky. If I start TSC through RWE with RWE enabled I get this dark sky issue. To revert I need to restore original shaders, close RWE, close TSC and restart. It must be something in my custom settings but I don't quite know where to start. It seems that the blue is missing from the sky.