Question animator position control

Why when you set the same coordinates in the animator, they change visually?

that is, I set the following code and visually it is clear that the location of the legs and their rotation are changing.

Code (CSharp):

1. animator.SetIKPositionWeight(AvatarIKGoal.LeftFoot, 1f);
2. animator.SetIKPositionWeight(AvatarIKGoal.RightFoot, 1f);
3. animator.SetIKRotationWeight(AvatarIKGoal.LeftFoot, 1f);
4. animator.SetIKRotationWeight(AvatarIKGoal.RightFoot, 1f);
5. animator.SetIKPosition(AvatarIKGoal.LeftFoot, animator.GetIKPosition(AvatarIKGoal.LeftFoot));
6. animator.SetIKPosition(AvatarIKGoal.RightFoot, animator.GetIKPosition(AvatarIKGoal.RightFoot));
7. animator.SetIKRotation(AvatarIKGoal.LeftFoot, animator.GetIKRotation(AvatarIKGoal.LeftFoot));
8. animator.SetIKRotation(AvatarIKGoal.RightFoot, animator.GetIKRotation(AvatarIKGoal.RightFoot));