Problems with 2.79 scene in 2.8


I hope someone can help me here. I made the following scene in Blender 2.79, and now I tried to render it in 2.8 but there is a big problem:

I changed no settings, but the render looks diffrent, it is to bright I think, but I have no idea why.

2.8 render :

2.79 render :

Another question I have is, why in Border Render, the rest of the scene turns into a uniform grey, what makes it impossible to work there, as you might see in the following screenshots. I can still grab objects, but there is only the outline visible How can I fix that?

Thanks for your help in advance, because I am really annoyed by this problem.

I think lights and roughness have changed. Other than that, did you previously tonemap it and now it conflicts with filmic or something? I’d look there.

I don’t know a fix for border render except turning off render region. I’ve never even noticed, so it’s not something that bothers me.