We are sharing world anchor data to create a shared experience on HoloLens. For the most part, this works pretty well. However, we have found that sometimes a device cannot anchor a world anchor exported by a different device. We have found this to be because the space data on each device is different (if we clear the space and rescan, it can then position the anchor).
So, we are wanting a single HoloLens to scan the space and export the world anchors, then other devices load the space data and world anchors. Conceptually, this presents a much more bullet proof option than having all the separate devices have their own scans. It is also much easier when introducing new devices to the environment-- they don't need to scan.
Then the question is: can we export and import the HoloLens space data?