Hi PaQ - the bug in this case has to do with the small size of the curve at the tip.

It is less than 1/100 the size of the bounding box around all the curves, which is a tolerance that is used to determine if all the curves in a direction are coming to a shared single "pole" type point.

So it is getting confused and thinking that small piece is part of a "pole" arrangement with the other 3 long length-wise pieces.

I have now fixed this up for the next beta so that it will also take curve length into account when computing the pole tolerance, that makes this case then work fine.

For the moment you'll need to leave out that small one at the tip to make it work.

- Michael