Bug?
I can't make a sweep : select circles + the "free curve" (the curve alone)

If I copy/past the internal line curve generator of the sweep existing that works!
Is that normal? (history enable or not)

Another curious thing : same sort of figures: a free curve (snaped on the grid) + some circles (snaped on the grid and not "vertical")
the function sweep don't orient automatically perpendicular the "circles" on the curve at any times! ???
I launch the program at any time!
Sometime it's "flat", sometime it's good ???