Spatial Mapping Persistance ? (OpenXR)

Ok, I have some answers.
I copied the scripts you have above, and there are 2 issues.

  1. inside of OnBumper the last line reads CreateAnchor(newAnchor); and it should read StartCoroutine(CreateAnchor(newAnchor));
  2. The anchor prefab held by the anchor manager needs to have an ARAnchor component on it. If you are using the default one from the ARFoundation package it does not contain this.

    You must copy the prefab into a folder outside of packages and add on the ARAnchor component

After I made those two changes I had no problem saving and loading the markers.
I hope that helps,
-Sidney