title: MRTK hand tracking does not work properly with Oculus Link
body: <p>I am creating a VR game in Unity.
  I am having a problem with hand tracking not working properly with PCVR (.exe build) only.</p>
  <p>The detailed situation is as follows</p>
  <ul>
  <li>I have developed a game using Unity, MRTK, and Oculus Integration, running on Oculus Quest2.</li>
  <li>When playing the game via Oculus Link with a PCVR(.exe) build, the following situation occurs.
  <ul>
  <li>Hand tracking works correctly in the scene immediately after startup.</li>
  <li>When hand tracking is performed after the scene transition, the hand mesh probably appears at (0, 0, 0) and does not move.</li>
  <li>The Dynamic Bone Collider attached to the hand is working, so it does not seem that the hand coordinates are not tracked completely.</li>
  <li>The controller works fine both after startup and after transition.</li>
  </ul>
  </li>
  <li>Hand tracking works fine in the APK build and in the mode where I press the Play button in Unity.</li>
  </ul>
  <p>The version is as follows</p>
  <ul>
  <li>Oculus Desktop App: 38.0</li>
  <li>Oculus Quest2: 38.0</li>
  <li>Unity: 2021.2.7f1</li>
  <li>Oculus Integration: 38.0</li>
  <li>MRTK: 2.7.3</li>
  </ul>