Augmented Reality for UE4

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Hi , hi !

How do I make my 3D Model stay at his last known position when the marker is lost, and start tracking again when the marker comes back into view?
I’ve followed these steps :

  1. Open the level blueprint and locate the “set hidden in game node”
  2. Disconnect the new hidden pin and set it to false
  3. It won’t disappear if the marker is not visible.

But the 3d Model seems to get back to 0,0,0 and not the last know position when it last had seen the tracker.

How can I fix that?

Thanks in advance,

Denis