This page Unity - Scripting API: Physics.CapsuleCast
Code reads:
Vector3 p1 = transform.position + charContr.center + Vector3.up * -charContr.height * 0.5F;
Vector3 p2 = p1 + Vector3.up * charContr.height;
Which does not take into account the capsule radius, so it produces points on the tip of either side of the capsule instead of the center of the spheres that form the sides.
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