Networking in VR with UNet And VRTK

Hi,

I'm trying to make a VR experience work over a network, ive been following a few examples etc online, one of which used the following for tracking (head and hands):

 IEnumerator TrackHeadCoroutine()
     {
         while (true)
         {
             transform.rotation = UnityEngine.XR.InputTracking.GetLocalRotation(UnityEngine.XR.XRNode.Head);
             transform.position = UnityEngine.XR.InputTracking.GetLocalPosition(UnityEngine.XR.XRNode.Head);
             yield return null;
         }
     }

This works absolutely fine when I walk around etc, but when I teleport (using VRTK) the head and hands still stay where they were and continue to track from their.

I'm missing something because I assumed that transform.position would always move to the position of my head? thanks for any help you can all give.