diff --git a/Source/Engine/Core/Math/BoundingSphere.cs b/Source/Engine/Core/Math/BoundingSphere.cs
index b1d493528..6f1271285 100644
--- a/Source/Engine/Core/Math/BoundingSphere.cs
+++ b/Source/Engine/Core/Math/BoundingSphere.cs
@@ -223,13 +223,9 @@ namespace FlaxEngine
         {
             if (points == null)
                 throw new ArgumentNullException(nameof(points));
-
-            // Check that start is in the correct range
-            if ((start < 0) || (start >= points.Length))
+            if (start < 0 || start >= points.Length)
                 throw new ArgumentOutOfRangeException(nameof(start), start, string.Format("Must be in the range [0, {0}]", points.Length - 1));
-
-            // Check that count is in the correct range
-            if ((count <= 0) || (start + count > points.Length))
+            if (count <= 0 || start + count > points.Length)
                 throw new ArgumentOutOfRangeException(nameof(count), count, string.Format("Must be in the range <= {0}", points.Length));
 
             int upperEnd = start + count;
@@ -247,15 +243,13 @@ namespace FlaxEngine
             for (int i = start; i < upperEnd; ++i)
             {
                 // We are doing a relative distance comparison to find the maximum distance from the center of our sphere
-                float distance;
                 Vector3.DistanceSquared(ref center, ref points[i], out float distance);
-
                 if (distance > radius)
                     radius = distance;
             }
 
             // Find the real distance from the DistanceSquared
-            radius = (float)Math.Sqrt(radius);
+            radius = Mathf.Sqrt(radius);
 
             // Construct the sphere
             result.Center = center;
diff --git a/Source/Engine/Debug/DebugDraw.cpp b/Source/Engine/Debug/DebugDraw.cpp
index d12704a21..434b469c4 100644
--- a/Source/Engine/Debug/DebugDraw.cpp
+++ b/Source/Engine/Debug/DebugDraw.cpp
@@ -804,15 +804,7 @@ void DebugDraw::DrawActors(Actor** selectedActors, int32 selectedActorsCount, bo
 
     if (drawScenes)
     {
-        Function<bool(Actor*)> function = [](Actor* actor)-> bool
-        {
-            if (actor->IsActiveInHierarchy())
-            {
-                actor->OnDebugDraw();
-                return true;
-            }
-            return false;
-        };
+        Function<bool(Actor*)> function = &DrawActorsTreeWalk;
         SceneQuery::TreeExecute(function);
     }
 }
diff --git a/Source/Engine/GraphicsDevice/Vulkan/IncludeVulkanHeaders.h b/Source/Engine/GraphicsDevice/Vulkan/IncludeVulkanHeaders.h
index 7779f790e..3e00a9e87 100644
--- a/Source/Engine/GraphicsDevice/Vulkan/IncludeVulkanHeaders.h
+++ b/Source/Engine/GraphicsDevice/Vulkan/IncludeVulkanHeaders.h
@@ -23,6 +23,8 @@
 #define VMA_MIN(v1, v2) (Math::Min((v1), (v2)))
 #define VMA_MAX(v1, v2) (Math::Max((v1), (v2)))
 #define VMA_SWAP(v1, v2) (::Swap((v1), (v2)))
+#define VMA_NULLABLE
+#define VMA_NOT_NULL
 #include <ThirdParty/VulkanMemoryAllocator/vk_mem_alloc.h>
 
 #endif