fixed ARKitSessionSubsystem flags

Assets/Scripts/UX/CheckAvailableFeatures.cs

 using UnityEngine;
 using UnityEngine.UI;
 using UnityEngine.XR.ARSubsystems;
+#if UNITY_IOS
+using UnityEngine.XR.ARKit;
+#endif
 
 public class CheckAvailableFeatures : MonoBehaviour
 {
 
         }
 #if UNITY_IOS
-        if(sessionDescriptors.Count > 0 /*&& ARKitSessionSubsystem.worldMapSupported*/)
+        if(sessionDescriptors.Count > 0 && ARKitSessionSubsystem.worldMapSupported)
-#endif
-        if(planeDescriptors.Count > 0 && rayCastDescriptors.Count > 0 && participantDescriptors.Count > 0)
+
+        if(planeDescriptors.Count > 0 && rayCastDescriptors.Count > 0 && participantDescriptors.Count > 0 && ARKitSessionSubsystem.supportsCollaboration)
+        if(sessionDescriptors.Count > 0 && ARKitSessionSubsystem.coachingOverlaySupported)
+        {
+            m_ARKitCoachingOverlay.interactable = true;
+        }      
+
+#endif
+
         if(depthDescriptors.Count > 0)
         {
             m_PointCloud.interactable = true;
         {
             m_PlaneOcclusion.interactable  = true;
         }    
-#if UNITY_IOS
-        if(sessionDescriptors.Count > 0 /*&& ARKitSessionSubsystem.coachingOverlaySupported*/)
-        {
-            m_ARKitCoachingOverlay.interactable = true;
-        }      
-#endif
+
     }
 
 }

ProjectSettings/ProjectSettings.asset

     16:9: 1
     Others: 1
   bundleVersion: 0.1
-  preloadedAssets: []
+  preloadedAssets:
+  - {fileID: 4800000, guid: e7c77f6eaab324a819efdc13b8125a39, type: 3}
   metroInputSource: 0
   wsaTransparentSwapchain: 0
   m_HolographicPauseOnTrackingLoss: 1