Created this object for sinks/showers plumbing plan. If you notice in the original on the LEFT side, one of the line end/circles is solid, the other line end/circle is open. Saved the object as a 3/4" HW/CW pipe and as a 1/2" HW/CW pipe... in both instances, the line end/solid circle fails to show, in the example on the RIGHT. What happened? Why?