Wierd lighting

The lighting when entering a base/building switches the "mode" only around 3 seconds after I walked inside the building which is in the first realm (after the tutorial one). Also the main point is: if I switch my graphics settings sometimes it starts randomly to get into a weird mode where every shadow is so dark I can only see some light from the sun between the shadow in orange-ish colour which is very unsatisfying to play even if I get out of the forest. I can only switch it off when I turn on and off the performance mode mainly. Also I once restarted the game and it came back into that weird graphics mode. The problem in "turning on and off performance mode" is especially that all quality settings there get lost. This really is a dealbreaker for me to play this game.