How to fix light bleeding??

Hi guys. I kinda desperated trying to fix this.

Light keeps passing through solid objects like if they werent there.

Things i already tried:

Increasing the lightmap resolution up to 1024.

Check double sided material in the proper material.

Check two sided lighting in the lightning tab of the mesh.

Change the sun light to stationary light / static.

I dunno what else to do to fix this. Basically more than half of my meshes get light bleeding.

Any ideas or how to actually fix this? this is what i get, not only in the assets from the infinity blade pack but also in my own meshes and other meshes from other packs. This is supossed to be a locked room with no windows or whatever … and this is how it looks… wtf. →

Thanks in advance.

I had the same problem when using the Infinity Blade assets as well. Here are some things I did that seemed to help:

Scale static meshes like floors and ceilings to be thicker.
Add a Skylight to my world and set it to Stationary.
Adjust the cascading shadows settings in your Directional Light.

Using a combination of these I was able to get dark interiors like I wanted.