When are Spatial Anchors deleted from WorldAnchorStore
When I deploy different scenes, apps, or just different versions of my code, sometimes the WorldAnchorStore does not have the entries which were there in previous runs.
Are World Anchors local to each app? Each Scene?
How does the standard build process using Visual Studio 2017 configure what is a new instance of the app, losing all your WorldAnchors?
The WorldAnchorManager does have "Persistent Anchors" enabled, and I see in the logs the successful creation of anchors.. but those anchors later disappear.
My specific case is one Unity 2017.2.1f1 project with two scenes. When deployed, one scene is successfully making WorldAnchors, but when i deploy and run the next scene (exported, deployed (over Wifi) separately, with no config changes except exporting one scene instead of the other) it can't find any of the WorldAnchors from the first scene.