Worldmap can't be created using ARKit Remote

I'm using an ARKit Remote to test a scene where I have to use the worldmap. When I print the current worldMappingStatus on each ARFrameUpdatedEvent, I always get ARWorldMappingStatusNotAvailable, however long I map the area. I tried this even with the UnityARWorldMap scene in the plugin examples, but get the same result.

However, when I compile my app into an iPhoneX with iOS 12 beta, I am able to save the worldmap and use it.

Does it mean I can't test WorldMap with ARKit Remote? That'd be quite frustrating, having to build the app again and again...

I'm working with ARKit 2.0 beta, Unity 2017.4.4f1, Xcode 10 beta, on an iPhone X with iOS 12 beta.

 

Code (CSharp):

1.        
2. public void GetCurrentWorldMapAsync(Action<ARWorldMap> completionCallback)
3.         {
4.             if (completionCallback == null)
5.                 return;
6.  
7. #if !UNITY_EDITOR && UNITY_IOS
8.             GCHandle handle = GCHandle.Alloc(completionCallback);
9.             session_GetCurrentWorldMap(m_NativeARSession, GCHandle.ToIntPtr(handle));
10. #else
11.             // Not supported: Invoke user callback immediately with null ARWorldMap
12.             completionCallback(null);
13. #endif
14.  

Yes, there's no implementation to get the worldMap on the Editor