On the screenshot is one of the corners of my room, which is built in Blender and imported as a .blend file. The top of all of the walls throughout the entire room have a little light penetrating through from the top, as shown on this bit, as if there was a gap between the ceiling and the wall, but there isn’t one.
I’ve even tried making the ceiling unnecessarily larger, so that it goes over the walls, assuming that the shadow might just be a little off in calculation. But there was still the same leftover light on the walls. Why does this happen and how do i eliminate it?