Hi PaQ - the picking order doesn't have any effect on Network, it depends on looking at all the intersections between the curves to sort things out.

It doesn't look like there is a problem in your layout, so this might be a bug, I'll take a look.

One quick other note though - it can cause problems to have a surface edge that comes to a tangent with its neighboring edges like you have at the small tip there. The surface-normal direction of a surface is usually defined as a perpendicular to 2 directions of the surface at any point. When you have that kind of a situation, the 2 surface directions are colinear, it makes the normal not well defined in that spot.

For operations that depend on the normal such as offsets that will cause a problem.

- Michael