diff --git a/.github/workflows/macos_x86.yml b/.github/workflows/macos_x86.yml
index 42e8af3..18919d5 100644
--- a/.github/workflows/macos_x86.yml
+++ b/.github/workflows/macos_x86.yml
@@ -29,12 +29,6 @@ jobs:
       uses: actions/checkout@v4
 
     # Install system dependencies
-    - name: Install Vulkan SDK
-      uses: humbletim/install-vulkan-sdk@v1.1.1
-      with:
-        version: 1.3.204.1
-        cache: true
-
     - name: Install Dependancies
       run: |
         brew install SDL2
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 83c5cc3..ad4d479 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -28,13 +28,6 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v4
 
-    # Install system dependencies
-    - name: Install Vulkan SDK
-      uses: humbletim/install-vulkan-sdk@v1.1.1
-      with:
-        version: 1.3.204.1
-        cache: true
-
     # Force xmake to a specific folder (for cache)
     - name: Set xmake env
       run: echo "XMAKE_GLOBALDIR=${{ runner.workspace }}/xmake-global" >> $GITHUB_ENV
diff --git a/src/core/application.cpp b/src/core/application.cpp
index 237ab2c..c0160c0 100644
--- a/src/core/application.cpp
+++ b/src/core/application.cpp
@@ -6,7 +6,7 @@
 /*   By: maldavid <kbz_8.dev@akel-engine.com>       +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/10/04 22:10:52 by maldavid          #+#    #+#             */
-/*   Updated: 2024/03/24 14:39:23 by maldavid         ###   ########.fr       */
+/*   Updated: 2024/04/21 18:13:29 by maldavid         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -50,13 +50,18 @@ namespace mlx::core
 				_loop_hook(_param);
 
 			for(auto& gs : _graphics)
-				gs->render();
+			{
+				if(gs)
+					gs->render();
+			}
 		}
 
 		Render_Core::get().getSingleTimeCmdManager().updateSingleTimesCmdBuffersSubmitState();
 
 		for(auto& gs : _graphics)
 		{
+			if(!gs)
+				continue;
 			for(int i = 0; i < MAX_FRAMES_IN_FLIGHT; i++)
 				gs->getRenderer().getCmdBuffer(i).waitForExecution();
 		}