So basically, I made a new worldspace, but if I tried to edit the heightmap, the GECK would crash, so I tried going in to do some of it manually to get started, and placed down an NPC and some statics for size reference on the terrain, but they are invisible wherever there is terrain behind them, and can only be seen when there would be that empty grayness behind them, and everything looks kind of screwy. Any ideas why?