Why is the Extrude on Spline tool not working properly?

Question

3D

Hello, there is such a problem! When creating an extrusion through the "Extrude on Spline" tool, an extrusion occurs, but at an angle, and not in the direction of polygons and lines, it is possible that the end point of the extrusion is selected incorrectly. Inverting by unchecking the spline settings does not give the desired result. Is there any way to fix this?
Max version 2022

Answer 1

Pay attention to this checkbox.
By default, the extrusion goes depending on the direction of the spline itself, by changing the position of the spline, you can change the direction of the extrusion.