I created a hatch area using the method described in the manual, i.e. copying the contour to a specific layer...The hatching parameters are scale:1, angle 180.
I do obtain hatches, but curiously three hatch lines cross the boundary. I get the same effect if I change the hatch direction to 90. However, if I specify a direction off by 1 degree (89 or 179), then the whole hatch area is correct. I also tried moving sligtly the hatching contour off from its position, hatching comes out correct then, even at directions 90 and 180. Any clues?