Hello, I have this strange lights problem. I use a sun and skylight in the scene. I made a room mesh win 2048 lightmaps res and then I added the furniture. Then I did some preview tests. When I don’t select my room mesh, the sunlight disappears! But when I select the mesh in editor, the sunlights comes up! This happens only in the interior, when sunlight comes inside the windows (and the glass material). Any ides?
I had a very similar problem, and it turned out to be related to my graphics card. I was using a fairly old one, and when I updated to a gtx 970 the problem went away. Your issue might be unrelated, but you might look into that.