title: Model derivative API affecting v6 viewer?
body: <p>Seems something changed with the recent updates to the model derivative api affecting the v6 viewer? When I upload this project to the API and view it in the viewer version 6.6.4 I get the following images. The same exact project looks just fine in Revit 2020. Is there a possibility a bug was introduced in the latest updates to the API that would affect older versions (6.6.4) of the viewer?</p>
  <p><a href="https://i.stack.imgur.com/GeRGv.png" rel="nofollow noreferrer">API image...notice the hardware placed incorrectly everywhere</a></p>
  <p><a href="https://i.stack.imgur.com/p5yNQ.png" rel="nofollow noreferrer">Revit 2020 image...everything placed correctly</a></p>