diff --git a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Thumbnails/Rendering/ThumbnailRendererSteps/ReleaseResourcesStep.cpp b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Thumbnails/Rendering/ThumbnailRendererSteps/ReleaseResourcesStep.cpp
index bad7c2fe38..ef82792f32 100644
--- a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Thumbnails/Rendering/ThumbnailRendererSteps/ReleaseResourcesStep.cpp
+++ b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/Thumbnails/Rendering/ThumbnailRendererSteps/ReleaseResourcesStep.cpp
@@ -32,32 +32,29 @@ namespace AZ
 
             void ReleaseResourcesStep::Start()
             {
-                m_context->GetData()->m_defaultMaterialAsset.Release();
-                m_context->GetData()->m_defaultModelAsset.Release();
-                m_context->GetData()->m_materialAsset.Release();
-                m_context->GetData()->m_modelAsset.Release();
+                auto data = m_context->GetData();
+                
+                data->m_defaultMaterialAsset.Release();
+                data->m_defaultModelAsset.Release();
+                data->m_materialAsset.Release();
+                data->m_modelAsset.Release();
+                data->m_lightingPresetAsset.Release();
 
-                if (m_context->GetData()->m_modelEntity)
+                if (data->m_modelEntity)
                 {
-                    AzFramework::EntityContextRequestBus::Event(m_context->GetData()->m_entityContext->GetContextId(),
-                        &AzFramework::EntityContextRequestBus::Events::DestroyEntity, m_context->GetData()->m_modelEntity);
-                    m_context->GetData()->m_modelEntity = nullptr;
+                    AzFramework::EntityContextRequestBus::Event(data->m_entityContext->GetContextId(),
+                        &AzFramework::EntityContextRequestBus::Events::DestroyEntity, data->m_modelEntity);
+                    data->m_modelEntity = nullptr;
                 }
 
-                m_context->GetData()->m_frameworkScene->UnsetSubsystem<RPI::Scene>();
-
-                m_context->GetData()->m_scene->Deactivate();
-                m_context->GetData()->m_scene->RemoveRenderPipeline(m_context->GetData()->m_renderPipeline->GetId());
-                RPI::RPISystemInterface::Get()->UnregisterScene(m_context->GetData()->m_scene);
-
-                auto sceneSystem = AzFramework::SceneSystemInterface::Get();
-                AZ_Assert(sceneSystem, "Thumbnail system failed to get scene system implementation.");
-                [[maybe_unused]] bool sceneRemovedSuccessfully = sceneSystem->RemoveScene(m_context->GetData()->m_sceneName);
-                AZ_Assert(
-                    sceneRemovedSuccessfully, "Thumbnail system was unable to remove scene '%s' from the scene system.",
-                    m_context->GetData()->m_sceneName.c_str());
-                m_context->GetData()->m_scene = nullptr;
-                m_context->GetData()->m_renderPipeline = nullptr;
+                data->m_scene->Deactivate();
+                data->m_scene->RemoveRenderPipeline(data->m_renderPipeline->GetId());
+                RPI::RPISystemInterface::Get()->UnregisterScene(data->m_scene);
+                data->m_frameworkScene->UnsetSubsystem(data->m_scene);
+                data->m_frameworkScene->UnsetSubsystem(data->m_entityContext.get());
+                data->m_scene = nullptr;
+                data->m_frameworkScene = nullptr;
+                data->m_renderPipeline = nullptr;
             }
         } // namespace Thumbnails
     } // namespace LyIntegration