Animator root motion with AiPath

I have tried the solution with Unity Site, as suggested in the script:

but it didn’t work, and for some reason the rig is falling through the floor

The code
[SerializeField] private AIPath _ai;
void AsynceAnimationsWithPathFiniding()
{
Vector3 nextPositio;
Quaternion nextRotation;
_ai.MovementUpdate(Time.deltaTime, out nextPositio, out nextRotation);
Vector3 worldDeltaPosition = nextPositio - transform.position;
worldDeltaPosition.y = 0;

    float dx = Vector3.Dot(transform.right, worldDeltaPosition);
    float dy = Vector3.Dot(transform.forward, worldDeltaPosition);
    Vector3 deltaPosition = new Vector2(dx, dy);

    float smooth = Mathf.Min(1, Time.deltaTime / containeSpeed);
    _smoothDeltaPosition = Vector2.Lerp(_smoothDeltaPosition, deltaPosition, smooth);

    _velocity = _smoothDeltaPosition / Time.deltaTime;
    var remaningDistance = _ai.remainingDistance;
    var stopingDistance = _ai.endReachedDistance;
    var raidus = _ai.radius;
    if (remaningDistance <= stopingDistance)
    {
        _velocity = Vector2.Lerp(
            Vector2.zero,
            _velocity,
            remaningDistance / stopingDistance
            );
    }

    bool shouldMove = _velocity.magnitude > _minimumeVelocityToMove && remaningDistance > raidus;
    var walkForawd = Mathf.Clamp(_velocity.y, -0.64f, 6f);
    var turnSide = Mathf.Lerp(_animator.GetFloat("VelX"), _velocity.x, smooth);
    var angle = Angle(nextPositio);
    var howMuchToTurn = Mathf.InverseLerp(0, 90, angle);
    var turnAngerl = Mathf.Lerp(0, 6, howMuchToTurn);

    bool doesNeedTurn = Angle(nextPositio) > 85;
    _animator.SetBool("Turn", doesNeedTurn);

    _animator.SetBool("Move", shouldMove);
    _animator.SetFloat("VelX", turnSide);
    _animator.SetFloat("VelY", walkForawd);

    float deltaMagnitude = worldDeltaPosition.magnitude;
    if (deltaMagnitude > raidus / 2f)
    {
        transform.position = Vector3.Lerp(
            _animator.rootPosition,
            nextPositio,
            smooth
            );
    }
}
float Angle(Vector3 nextPostion)
{
    Vector3 targetDir = nextPostion - transform.position;
    float angle = Vector3.Angle(targetDir, transform.forward);


    return angle;
}

private void OnAnimatorMove()
{
    _ai.canMove = false;
    _ai.MovementUpdate(Time.deltaTime, out var nextPosition, out var nextRotation);
    Vector3 rootPosition = _animator.rootPosition;
    rootPosition.y = nextPosition.y;
    transform.position = rootPosition;
    transform.rotation = _animator.rootRotation;
    _ai.FinalizeMovement(rootPosition, nextRotation);
}

Blockquote

Is this working? I am having trouble with my AI going past its target and trying to correct itself.
The following code right before your float deltaMagnitude line will prevent falling through floor.

            nextPosition = transform.position + 0.5f * worldDeltaPosition;