title: ARKit - Weaknesses anchoring models on vertical plan
body: <p>For few months, I have tested ARKit on some demonstration projects, and I have noticed that the models anchoring on vertical plan can be very unstable. Sometimes, the 3D models can go up or down on the vertical plan. This can be critical for some cases. We know, the anchoring depends on a multitude of parameters and the environment.</p>
  
  <p>I would like to have some of your feedbacks, experiences on this issue.</p>