diff --git a/Source/Engine/Content/Assets/MaterialInstance.cpp b/Source/Engine/Content/Assets/MaterialInstance.cpp
index d432a5804..c0d2137f1 100644
--- a/Source/Engine/Content/Assets/MaterialInstance.cpp
+++ b/Source/Engine/Content/Assets/MaterialInstance.cpp
@@ -115,16 +115,6 @@ void MaterialInstance::OnBaseParamsChanged()
     ParamsChanged();
 }
 
-void MaterialInstance::OnUnload()
-{
-    if (_baseMaterial)
-    {
-        OnBaseUnset();
-        _baseMaterial = nullptr;
-    }
-    Params.Dispose();
-}
-
 bool MaterialInstance::IsMaterialInstance() const
 {
     return true;
@@ -242,7 +232,12 @@ Asset::LoadResult MaterialInstance::load()
 
 void MaterialInstance::unload(bool isReloading)
 {
-    OnUnload();
+    if (_baseMaterial)
+    {
+        OnBaseUnset();
+        _baseMaterial = nullptr;
+    }
+    Params.Dispose();
 }
 
 AssetChunksFlag MaterialInstance::getChunksToPreload() const
diff --git a/Source/Engine/Content/Assets/MaterialInstance.h b/Source/Engine/Content/Assets/MaterialInstance.h
index 3cf74db03..dc37133d7 100644
--- a/Source/Engine/Content/Assets/MaterialInstance.h
+++ b/Source/Engine/Content/Assets/MaterialInstance.h
@@ -49,7 +49,6 @@ private:
     void OnBaseUnset();
     void OnBaseUnloaded(Asset* p);
     void OnBaseParamsChanged();
-    void OnUnload();
 
 public:
 
diff --git a/Source/Engine/Core/Collections/Array.h b/Source/Engine/Core/Collections/Array.h
index 5efac818e..c122284ed 100644
--- a/Source/Engine/Core/Collections/Array.h
+++ b/Source/Engine/Core/Collections/Array.h
@@ -466,6 +466,17 @@ public:
         _count++;
     }
 
+    /// <summary>
+    /// Adds the specified item to the collection.
+    /// </summary>
+    /// <param name="item">The item to add.</param>
+    void Add(T&& item)
+    {
+        EnsureCapacity(_count + 1);
+        Memory::MoveItems(_allocation.Get() + _count, &item, 1);
+        _count++;
+    }
+
     /// <summary>
     /// Adds the specified item to the collection.
     /// </summary>