So, the red box is the leafvis i'm inside. The blue box i highlighted in the sky is an areaportal gap in the skybox "seperation wall" which was implemented for the large blue-grey silo prop on the roof to be visible from both sides of the building. However, even though the leafvis is surrounded by solid geometry and skybox walls, some roof segments on the other side are still be rendered despite there being a 512+ unit tall skybox brush laying directly in the way. Quite annoying and so far impossible to rectify. Before anyone asks if the right hand side of the leafvis can see the far building, no it can not. The top of the dirty-white-wood building has a skybox brush ontop of it. Also, the far buildings are not taller than the 512 unit tall skybox wall this leafvis seems to be able to peer over.