Doesn’t seem like it’s possible to snap a curve point to a position on a different curve that I’ve projected onto a surface. I’m moving the curve point by snapping to it first, then using End or Near snap to snap to the second (projected) curve. It doesn’t pick up on this. Nor does it work when I show the projected curve’s points, and try snapping to a curve point. It works only if I create a new point along the projected curve, then snap to that point. I think this is a bug - ?