Click the url for a bigger pic. [img=http://img440.imageshack.us/img440/4710/55774846.th.jpg] Why does the ridgeline of my house keep disappearing? It is keeping me from committing on the design. There are no orange highlighted areas on the whole design. I can complete the room and then change lvls and when I go back to the 4th level it has disappeared again. I have adjusted the height and tried different roof types with the same results. The gap on the lower roof tiles is intentional because it is 2 separate smaller house that connect on the 3rd lvl with a "skywalk" type thing. Thanks in advance.