ViewController lost reference when push notification was being clicked and when the app was in background too

[rafameyer]

1. App is in Background

2. Push notification is received and clicked

3. App will open and be redirect to the SecondViewController and the back button is clicked

4. When click to the back button from SecondViewController and back to FirstViewController the "Menu" loss the reference from MenuViewController

My Code:

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
    if (application.applicationState == UIApplicationStateActive) {
        .......
    } else {
        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
        UINavigationController *navigationController=[[UINavigationController alloc] init];
        self.window.rootViewController = nil;
        self.window.rootViewController = navigationController;

        MenuViewController *menuViewController = [storyboard instantiateViewControllerWithIdentifier:@"MenuViewController"];
        [navigationController pushViewController:menuViewController animated:NO];

        HomeViewController *homeViewController = [storyboard instantiateViewControllerWithIdentifier:@"HomeViewController"];
        [navigationController pushViewController:homeViewController animated:NO];

        AllNewsNotificationViewController *allNewsNotificationViewController  = [storyboard instantiateViewControllerWithIdentifier:@"AllNewsNotificationViewController"];
        [navigationController pushViewController:allNewsNotificationViewController animated:YES];

        [self.window makeKeyAndVisible];
    }

My MenuViewController impl:

@implementation MenuViewController

- (id)init {
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    self = [storyboard instantiateViewControllerWithIdentifier:@"MenuViewController"];

    if (!self) {
        return self;
    }

    self.navigationController = [[UINavigationController alloc] initWithRootViewController:self.homeViewController];

    NSDictionary *options = @{
                              PKRevealControllerRecognizesPanningOnFrontViewKey : @YES,
                              PKRevealControllerDisablesFrontViewInteractionKey : @NO
                              };

    self.revealController = [SubviewPKRevealViewController revealControllerWithFrontViewController:self.navigationController leftViewController:self options:options];
    self.revealController.revealDelegate = self.homeViewController;

    // The target view controller must implement this method
    self.navBarGesture =  [[UIPanGestureRecognizer alloc] initWithTarget:self.homeViewController action:@selector(menuPan:)];
    [self.navigationController.navigationBar addGestureRecognizer:self.navBarGesture];
    self.view.backgroundColor = [[Configurations sharedInstance] menuBackgroundColor];
    _topView.backgroundColor = [[Configurations sharedInstance] navegationbarBackgroundColor];

    return self;
}

Menu shortcut (button) from MenuViewController lost the reference and doesn't works.