Unity lighting goes bad when loading a scene via SceneManager

I'm trying to create a game with unity where you have to solve levels but can only see the shadows. Now if I try to play my scenes by doubleclicking they look like they should and have good lightning and shadows. But if I select them by the levelselector and load then with the scene manager The levels look dark and the lightning get bad. My script to load scene is easy: I just load the scene by the scene name e.g. with SceneManager.LoadScene(Level1); But every time I do that the lighting settings get bad.

My Quality settings:

My Graphic settings

Scene after loading by doubbleclick:

Same Scene after loading with SceneManager

from Unity lighting goes bad when loading a scene via SceneManager