diff --git a/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailerBus.h b/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailerBus.h
index 6f074da878..acd8ba3966 100644
--- a/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailerBus.h
+++ b/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailerBus.h
@@ -90,7 +90,7 @@ namespace AzToolsFramework
             typedef SharedThumbnailKey BusIdType;
 
             //! notify product thumbnail that the data is ready
-            virtual void ThumbnailRendered(QPixmap& thumbnailImage) = 0;
+            virtual void ThumbnailRendered(const QPixmap& thumbnailImage) = 0;
             //! notify product thumbnail that the thumbnail failed to render
             virtual void ThumbnailFailedToRender() = 0;
         };
diff --git a/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.cpp b/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.cpp
index 084e38a2db..cdd63dca18 100644
--- a/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.cpp
+++ b/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.cpp
@@ -67,7 +67,7 @@ namespace ImageProcessingAtom
             m_renderWait.acquire();
         }
 
-        void ImageThumbnail::ThumbnailRendered(QPixmap& thumbnailImage)
+        void ImageThumbnail::ThumbnailRendered(const QPixmap& thumbnailImage)
         {
             m_pixmap = thumbnailImage;
             m_renderWait.release();
diff --git a/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.h b/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.h
index 45fd178285..eadbfca945 100644
--- a/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.h
+++ b/Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Thumbnail/ImageThumbnail.h
@@ -34,7 +34,7 @@ namespace ImageProcessingAtom
             ~ImageThumbnail() override;
 
             //! AzToolsFramework::ThumbnailerRendererNotificationBus::Handler overrides...
-            void ThumbnailRendered(QPixmap& thumbnailImage) override;
+            void ThumbnailRendered(const QPixmap& thumbnailImage) override;
             void ThumbnailFailedToRender() override;
 
         protected:
diff --git a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.cpp b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.cpp
index 0723859ff5..2931b647e5 100644
--- a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.cpp
+++ b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.cpp
@@ -54,7 +54,7 @@ namespace AZ
                 AzFramework::AssetCatalogEventBus::Handler::BusDisconnect();
             }
 
-            void MaterialThumbnail::ThumbnailRendered(QPixmap& thumbnailImage)
+            void MaterialThumbnail::ThumbnailRendered(const QPixmap& thumbnailImage)
             {
                 m_pixmap = thumbnailImage;
                 m_renderWait.release();
diff --git a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.h b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.h
index dba922a1b2..8f2053ba67 100644
--- a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.h
+++ b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Material/MaterialThumbnail.h
@@ -36,7 +36,7 @@ namespace AZ
                 ~MaterialThumbnail() override;
 
                 //! AzToolsFramework::ThumbnailerRendererNotificationBus::Handler overrides...
-                void ThumbnailRendered(QPixmap& thumbnailImage) override;
+                void ThumbnailRendered(const QPixmap& thumbnailImage) override;
                 void ThumbnailFailedToRender() override;
 
             protected:
diff --git a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.cpp b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.cpp
index 658d420a16..845197d939 100644
--- a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.cpp
+++ b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.cpp
@@ -55,7 +55,7 @@ namespace AZ
                 AzFramework::AssetCatalogEventBus::Handler::BusDisconnect();
             }
 
-            void MeshThumbnail::ThumbnailRendered(QPixmap& thumbnailImage)
+            void MeshThumbnail::ThumbnailRendered(const QPixmap& thumbnailImage)
             {
                 m_pixmap = thumbnailImage;
                 m_renderWait.release();
diff --git a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.h b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.h
index 2975b6950c..872e1029d2 100644
--- a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.h
+++ b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Mesh/MeshThumbnail.h
@@ -35,7 +35,7 @@ namespace AZ
                 ~MeshThumbnail() override;
 
                 //! AzToolsFramework::ThumbnailerRendererNotificationBus::Handler overrides...
-                void ThumbnailRendered(QPixmap& thumbnailImage) override;
+                void ThumbnailRendered(const QPixmap& thumbnailImage) override;
                 void ThumbnailFailedToRender() override;
 
             protected: