If you adjust your lights attenuation radius to inside the room to something inside the room does this issue still happen?
You may look into converting the BSP’s to static mesh’s and adjusting the light map resolution to something like 512. Typically BSP’s are meant to be building blocks witch which to block out levels with. Getting a general Sense of how the flow of the level is going to go and where future assets will be placed. Also, creating walls that are not part of the ceiling can also cause this. In the future you may want to make your walls and ceiling out of one “Additive” BSP and hollow out the room with a subtractive BSP.
Thanks very much for your answer. I will try steps you`ve suggested. Eventually perhaps changing BSP model of a wall to static mesh (not even converting) may be the answer.
Thanks very much for your answer. I will try steps you`ve suggested. Eventually perhaps changing BSP model of a wall to static mesh (not even converting) may be the answer.