Kinect data retrieved on Update() call not available on LateUpdate() call.

I have a game component KinectManager which I use to manage the connection to my Kinect sensor, plus pull data from it by storing updated sensor data in a publicly exposed Body[] property. The Body[] property gets repopulated every time the component's Update() method is called:

    void Update()
     {
         if (_bodyFrameReader != null)
         {
             var frame = _bodyFrameReader.AcquireLatestFrame();
             if (frame != null)
             {
                 if (_bodies == null)
                 {
                     _bodies = new Body[MaxNumberOfPlayers];
                 }
  
                 frame.GetAndRefreshBodyData(_bodies);
  
                 //frame.Dispose();
                 //frame = null;
             }
         }

 
     }
 

The _bodies attribute is exposed publicly here:

    public Body[] GetData()
     {
         return _bodies;
     }
  
     public Body GetData(int playerIndex)
     {
         if (null == _bodies)
         {
             return null;
         }
         return _bodies[playerIndex];
     }
 
  

I have another game component which is attached to the KinectManager game component by storing it in a public property set by the Unity3D editor. This game component, the LeftHandController, reads the data stored in _bodies on every LateUpdate() call:

 protected void updateLeftHandPosition()
 {
     //_playerBody = _kinectManager.GetData(PlayerIndex);
     Body[] bodies = _kinectManager.GetData();
     _playerBody = bodies[PlayerIndex];
 
     if (null == _playerBody)
     {
         return;
     }
 
     Windows.Kinect.Joint leftHand = _playerBody.Joints[JointType.HandLeft];
 
     transform.position.Set(leftHand.Position.X, leftHand.Position.Y, transform.position.z);
 
 }
 
 

    public void LateUpdate()
     {
         updateLeftHandPosition();
     }

 

However, every time my LeftHandController.LateUpdate() is called, the data from _kinectManager.GetData() always returns as:

ObjectDisposedException: The object was used after being disposed. Windows.Kinect.Body.get_Joints () (at Assets/Standard Assets/Windows/Kinect/Body.cs:290) StupidFun.LeftHandController.updateLeftHandPosition () (at Assets/StupidFun/LeftHandController.cs:41) StupidFun.LeftHandController.LateUpdate () (at Assets/StupidFun/LeftHandController.cs:59)

Why?