title: UserDefault always return nil
body: <p><code>UserDefaults</code> are not working in my App. Please find the below code under <code>AppDelegate</code> file.</p>
  
  <pre><code>let sharingData = UserDefaults.init(suiteName: "group.macuser79.xxx");
  sharingData?.set("vincenzo", forKey:"username");
  sharingData?.synchronize();
  </code></pre>
  
  <p>In the InterfaceController of the app to Watch, to be able to retrieve the value so I did this:</p>
  
  <pre><code>override func awake(withContext context: Any?) {
  let sharingData = UserDefaults.init(suiteName: "group.macuser79.xxx");
  
  let username = sharingData?.object(forKey: "username");
      print("Value username \(username)");
  }
  </code></pre>
  
  <p>Please let me know, what I'm doing wrong!</p>