I'm running the vanilla game with the 18.104.22.168 patch, and am using the natural and realistic ENB:
I've noticed that whenever I alt tab out of and back into the game, shadows suddenly appear that weren't there before. It's most clear when in video editor mode.
Here, the shadows appear when I alt tab back to the game. However, when I then play the clip, the shadows disappear.
Is this simply an issue with the game version, or is there something I'm missing here?