Not receiving push notifications.

XCode Version: 13.2.1 iOS Version: 15.3.1

I have an apple server setup for sending push notifications, that sends to both Production and Development environments.

It is using certificate-based push, the type of certificate selected is this:

Other than that the code is successfully registering for remote notification returning a unique device token.

Here is the code for registering for notification.

let center = UNUserNotificationCenter.current()
      center.delegate = self as UNUserNotificationCenterDelegate
      center.requestAuthorization(options: [.alert, .badge, .sound]) { granted, error in
        print("Granted \(granted)")
        print("Granted \(granted.description)")
        if error != nil {
          print("Error in permission for notificaiton")
        }
        if(granted){
          print("Permission is granted")
          DispatchQueue.main.async {
            let settings = UIUserNotificationSettings(types: [], categories: .none)
            UIApplication.shared.registerUserNotificationSettings(settings)
            UIApplication.shared.registerForRemoteNotifications()
          }
        } else {
          self.deviceToken = "PermissionDenied"
        }
      }

Here is the registration callback

override func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken tokenData: Data) {
    print("This is unnotification token \(tokenData.hexString)")
    deviceToken = tokenData.hexString
  }

override func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler  completionHandler: @escaping (_ options:  UNNotificationPresentationOptions) -> Void) {
    print("Handle push from foreground")
    // custom code to handle push while app is in the foreground
    print("\(notification.request.content.userInfo)")
    completionHandler(.alert)
  }
   
  override func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    print("Handle push from background or closed")
    // if you set a member variable in didReceiveRemoteNotification, you will know if this is from closed or background
    print("\(response.notification.request.content.userInfo)")
    completionHandler()
  }
   
  override func application(_ application: UIApplication,
               didReceiveRemoteNotification userInfo: [AnyHashable : Any],
               fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {     
    print("This is push notification data \(userInfo)")
    // Inform the system after the background operation is completed.
    completionHandler(.newData)
  }

Here is the server response for sending the notification to the device token provided to it.

None of the callback is receiving the notification payload.

Here is the notification payload:

{
    "aps" : {
        "alert" : {
            "title" : "Game Request",
            "body" : "Bob wants to play poker",
        },
    },
}