The world comes up with both of the config sets, but it's interesting - it appears somewhat gradually - I've never seen that
Will investigate.
I had same fail again. Its like, you are flying and suddenly light bright so so much and image get weird. If you try close and open outerra again, problem not solved.
So, in this case i only deleted Eng.cfg. And was enough for fix. So maybe you was right, problem maybe there.
The thing i did minutes before is change day for change weather. I was flying around swiss and i wanted less cloudy day so was testing moving day forward in menu until i found a nice day. I still like more the real weather because adds nice color effect i think manually dont add. So thats the reason i do that way.
Dont know if can be related with the fail or not.
I send Eng.cfg so you can investigate if youn stil curious. Certainly is not a big problem coz can fix easily deleting eng.cfg.
Or maybe is some problem with my computer itself. Run in low memory at some point or whatever.