Been trying to fix this for a month now.
In the screenshot above you can see I have a small building that consists of the following:
9 floor meshes
4 walls - 2 meshes wide
9 ceiling meshes
I built the lighting and what seems like a completely closed in box reveals light coming in at the corners on 2 of the walls.
I set the whole building to two sided lighting and it gets worse, the 2 walls you see that are lit up at the top become completely lit up from top to bottom.
I tried setting the whole building to non-two sided lighting and I get what you see above.
This is using the default 3rd person template, all I did was import a bunch of meshes and built a small building.
Seriously, been bugging the **** out of me for a solid month now. What am I doing wrong?