Does WorldTrackingProvider.addAnchor work in the simulator?

First, I start add the provider to the session:

do {
   if WorldTrackingProvider.isSupported {
      try await session.run([worldTracking])
      print("World Tracking Provider Started.")
   } else {
      print("World Tracking not supported >.>")
    }
} catch {
   print("ARKitSession error:", error)
}

Then I try to add a world anchor:

    var task: Task<Void, Never>?
    func trackAnchor(_ anchor: WorldAnchor) {
        task = Task {
            do {
                try await self.worldTracking.addAnchor(anchor)
                print("Added anchor to tracking provider!")
            } catch {
                print("Error: \(error)")
            }
        }
    }

The awaited call never finishes. A breakpoint is not hit and errors are not thrown.

As such, when the app is quit and restarted, the system does not recover the tracked world anchor.

Any ideas?