I see... when you click inside the area it comes up with something wild that does not represent the actual shape, but when you click on the edge of the spline, everything works out nicely. Seem weird to you?
While on the topic of splines, I'm drawing an existing stairwell that has a complex curve to it, which I have drawn with a spline. I want to offset that spline 3" to show the thickness of the handrail. Of course, it's only offsetting the one point I select. Is it possible to have all parts of the spline be 3" away, making not an identical spline but a larger spline?