I am unable to get push notifications working for Catalyst. My current setup works correctly for iOS but shows an authentication error for Catalyst.

Code Excerpts

AppDelegate
      FirebaseApp.configure(options: options)
        Messaging.messaging().delegate = self
        UNUserNotificationCenter.current().delegate = self

      func registerForPushNotifications(completionHandler : @escaping () -> Void) {
        UNUserNotificationCenter.current().getNotificationSettings() { settings in
            guard settings.authorizationStatus == .authorized else { return }
            
            DispatchQueue.main.async {
                UIApplication.shared.registerForRemoteNotifications()
                iOSNotificationService.shared.getPendingNotifications()
                completionHandler()
            }
        }
    }


func requestPushNotificationAuthorization(completionHandler: @escaping ()-> Void ) {
        let authOptions : UNAuthorizationOptions = [.alert, .badge, .sound]
        UNUserNotificationCenter.current().requestAuthorization(options: authOptions) { (granted, error) in
            guard granted else {
                if let errorString = error?.localizedDescription {
                    os_log("Push notification authorization denied : %{public}s", errorString )
                }
                
                return
            }
            self.registerForPushNotifications() {
               // 
               //
            }
            
            completionHandler()
        }
    }

**Error **
{ Error: Auth error from APNS or Web Push Service Raw server response: "{"error":{"code":401,"message":"Auth error from APNS or Web Push Service","status":"UNAUTHENTICATED","details":[{"@type":"type.googleapis.com/google.firebase.fcm.v1.FcmError","errorCode":"THIRD_PARTY_AUTH_ERROR"}]}}"
at FirebaseMessagingError.FirebaseError [as constructor] (/srv/node_modules/firebase-admin/lib/utils/error.js:42:28)
at FirebaseMessagingError.PrefixedFirebaseError [as constructor] (/srv/node_modules/firebase-admin/lib/utils/error.js:88:28)
at new FirebaseMessagingError (/srv/node_modules/firebase-admin/lib/utils/error.js:253:16)
at Function.FirebaseMessagingError.fromServerError (/srv/node_modules/firebase-admin/lib/utils/error.js:283:16)
at Object.createFirebaseError (/srv/node_modules/firebase-admin/lib/messaging/messaging-errors.js:34:47)
at /srv/node_modules/firebase-admin/lib/messaging/messaging-api-request.js:76:42
at
at process._tickDomainCallback (internal/process/next_tick.js:229:7)
errorInfo:
{ code: 'messaging/unknown-error',
message: 'Auth error from APNS or Web Push Service Raw server response: "{"error":{"code":401,"message":"Auth error from APNS or Web Push Service","status":"UNAUTHENTICATED","details":[{"@type":"type.googleapis.com/google.firebase.fcm.v1.FcmError","errorCode":"THIRD_PARTY_AUTH_ERROR"}]}}"' },
codePrefix: 'messaging' }

Configuration

• Using APNS Key
• Happens with both Xcode 11.3.1. & 11.4 Beta
• Mac OS Catalina 10.15.3
• podfile.lock excerpts
  • Firebase/Functions (6.18.0):
    • Firebase/CoreOnly
    • FirebaseFunctions (~> 2.5.1)
  • Firebase/Messaging (6.18.0):
    • Firebase/CoreOnly
    • FirebaseMessaging (~> 4.3.0)
  • FirebaseCore (6.6.3):
    - FirebaseCoreDiagnostics (> 1.2)
    - FirebaseCoreDiagnosticsInterop (> 1.2)
    - GoogleUtilities/Environment (> 6.5)
    - GoogleUtilities/Logger (> 6.5)