I know there have been dozens of threads regarding how bugged creating worldspaces is in the CK, but I have a quick question.

I just created an exterior worldspace, thats about 5X5 not big at all. I was in the middle of simply raising clumps of land over water, and suddenly I couldn't anymore... Kinda made me laugh. I couldn't see the edit radius of the land modifier at all, save at these tiny points where my mouse hovered. Anyone know what that is? Have I already gotten to the bugged points of worldspace creation?