Build and Unity look different.,Build looks different to Scene/Game view

Hey there,

currently Iam struggling with my build of a scene.
In my “Scene”-view the graphics look like i wanted them to. The “Game” view looks exactly alike:

The built game on the other hand shows a different lighting- the interior is not lit or only a little bit.

Does anyone have an explanation for this? I cannot figure it out.

Rendering is deferred, color space linear.
The Room Model is static and ambient lighting is set for baked and realtime.

I hope you guys can help me.
Thanks in advance.

So one option i figured out is to set every light to mixed lighting.
Is that the only option?