diff --git a/MVMCoreUI/Containers/NavigationController.swift b/MVMCoreUI/Containers/NavigationController.swift
index 6176427f..776bfe2a 100644
--- a/MVMCoreUI/Containers/NavigationController.swift
+++ b/MVMCoreUI/Containers/NavigationController.swift
@@ -130,11 +130,11 @@ extension NavigationController: MVMCoreViewManagerProtocol {
     }
     
     public func newDataReceived(in viewController: UIViewController) {
-        if viewController == topViewController,
-           let model = Self.getNavigationModel(from: viewController) {
-            Self.setNavigationItem(navigationController: self, navigationItemModel: model, viewController: viewController)
-            Self.setNavigationBarUI(navigationController: self, navigationItemModel: model, viewController: viewController)
-        }
+        guard let topViewController = topViewController,
+              viewController == MVMCoreUIUtility.getViewControllerTraversingManagers(topViewController),
+              let model = Self.getNavigationModel(from: viewController) else { return }
+        Self.setNavigationItem(navigationController: self, navigationItemModel: model, viewController: viewController)
+        Self.setNavigationBarUI(navigationController: self, navigationItemModel: model, viewController: viewController)
         manager?.newDataReceived?(in: viewController)
     }
     
@@ -160,7 +160,6 @@ extension NavigationController: MVMCorePresentationDelegateProtocol {
         guard self == navigationController else { return }
         if let controller = viewController as? (UIViewController & MVMCoreViewManagerViewControllerProtocol) {
             MVMCoreViewManagerViewControllerProtocolHelper.helpSetManager(self, viewController: controller)
-            controller.viewControllerReady?(inManager: self)
         }
         if let model = Self.getNavigationModel(from: viewController) {
             Self.setNavigationItem(navigationController: self, navigationItemModel: model, viewController: viewController)
@@ -174,5 +173,8 @@ extension NavigationController: MVMCorePresentationDelegateProtocol {
             Self.setNavigationBarUI(navigationController: self, navigationItemModel: model, viewController: viewController)
         }
         manager?.displayedViewController?(viewController)
+        if let controller = viewController as? (UIViewController & MVMCoreViewManagerViewControllerProtocol) {
+            controller.viewControllerReady?(inManager: self)
+        }
     }
 }
diff --git a/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController+Extension.swift b/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController+Extension.swift
index fcd4e821..4c389bd3 100644
--- a/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController+Extension.swift
+++ b/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController+Extension.swift
@@ -75,7 +75,7 @@ public extension MVMCoreUISplitViewController {
             leftItems.append(contentsOf: additionalLeftButtons)
         }
         
-        viewController.navigationItem.setLeftBarButtonItems(leftItems.count > 0 ? leftItems : nil, animated: !DisableAnimations.boolValue)
+        navigationController.topViewController?.navigationItem.setLeftBarButtonItems(leftItems.count > 0 ? leftItems : nil, animated: !DisableAnimations.boolValue)
     }
     
     /// Sets the right navigation items for the view controller based on model and splitview.
@@ -102,7 +102,7 @@ public extension MVMCoreUISplitViewController {
             rightItems.append(contentsOf: additionalRightButtons)
         }
         
-        viewController.navigationItem.setRightBarButtonItems(rightItems.count > 0 ? rightItems : nil, animated: !DisableAnimations.boolValue)
+        navigationController.topViewController?.navigationItem.setRightBarButtonItems(rightItems.count > 0 ? rightItems : nil, animated: !DisableAnimations.boolValue)
     }
     
     @objc func navigationBarModelExists() -> Bool {
@@ -129,7 +129,8 @@ extension MVMCoreUISplitViewController: MVMCoreViewManagerProtocol {
     }
     
     public func displayedViewController(_ viewController: UIViewController) {
-        updateNavigationBarFor(viewController: viewController)
+        guard let controller = MVMCoreUIUtility.getViewControllerTraversingManagers(viewController) else { return }
+        updateNavigationBarFor(viewController: controller)
     }
     
     public func newDataReceived(in viewController: UIViewController) {