Rotate Rigidbody according to NavMeshAgent's nextPosition

Unity Engine
1

Hello!

Does anybody spot any error in my code?
To me it looks really beautiful and correct, but since my character doesn’t rotate towards the nextPosition, I think my code isn’t as good as I think. :-8

Does anybody see my mistake?

Thank you very much!

I have _agent.updatePosition = false;

    void Start()
    {
        (...)
        _agent.updatePosition =false;// I don't want the agent to actually move the rigidbody...
        _agent.updateRotation = true;// ... I only want to know the direction in which the agent would rotate in order to follow the path
       }

   void Update()
    {
         _agent.nextPosition = _rigidBody.position;//doesn't work in FixedUpdate
    }
    void FixedUpdate()
    {
       (...)
       pRotateTowardsNextPathPoint();
    }
    private void pRotateTowardsNextPathPoint()
    {
        //let the navmesh agent determine the rotation
        //the position / velocity comes from the animation's root motion
        //my animation forward velocity isn't linear, but NavMeshAgent only supports linear Speed, so I don't let NavMeshAgent move my character forward

        var qTo = Quaternion.LookRotation(_agent.nextPosition);
        qTo = Quaternion.Slerp(this.transform.rotation, qTo, 30.0f * Time.deltaTime);
        _rigidBody.MoveRotation(qTo);
    }
2

@Jakob_Unity Hello Jakob, could you jump up on this?