When I have a particularly large room built and set up dynamic lighting, I seem to have consistent glitches in player view. This is an image of the map with GM View: Green boxes (and the black dividing lines on the walls) indicate obstructions to dynamic lighting. The stretchy fireball graphics are invisible light sources. Note that because of the black lines and green boxes, the highlighted character at top-right should in no way be able to see the invisible light, much less the far left side of the room. And here's what it looks like if we join the game as the highlighted character: Basically I'm pretty much baffled as to why I see the little Ponyta on the left side of the screen through the scattered light.