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Point inside a pin when using sample points

Good morning,
I'm new here and I have a question regarding sample points. When i create sample points in order to measure a pin coming out of a planar surface, with 3 sample points and 5 points on the pin and run the measurements, the software requires to take a point on the axis of the pin (inside the pin) before the 3 sample points, thus creating problems during allignement or during automated procedures. I suppose that one setting was probably changed, but I can't find which one.