# \[UE5.1, Bug report\] UUserWidget::NativeConstruct "ticks" when the asset is hovered. **URL:** \ **Category:** C++\ **Tags:** unreal-engine, bug-report, Widget, Blueprint, CPP, question\ **Created:** [February 24, 2023, 12:15am UTC](https://forums.unrealengine.com/t/ue5-1-bug-report-uuserwidget-nativeconstruct-ticks-when-the-asset-is-hovered/777424 "2023-02-24T00:15:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Roy\_Wierer.Seda145](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/roy_wierer.seda145/32/906551_2.png) [@Roy\_Wierer.Seda145](https://forums.unrealengine.com/u/Roy_Wierer.Seda145)\ **Post date:** [February 24, 2023, 12:15am UTC](https://forums.unrealengine.com/t/ue5-1-bug-report-uuserwidget-nativeconstruct-ticks-when-the-asset-is-hovered/777424/1 "2023-02-24T00:15:53Z")
This looks ridiculous, I’m pretty sure it should not be doing this. As far as I know NativePreConstruct is supposed to run at least once but only when it is added to a parent or removed from it. But it runs infinitely as a “tick” when you hover a UserWidget asset in the editor. 1. Right click the asset. NativePreConstruct runs twice. 2. unhover then hover the asset. 3. See it go batsh\*t for no reason. obv. you need to print a debug message to notice but this is unexpected. ---
**Author:** ![Roy\_Wierer.Seda145](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/roy_wierer.seda145/32/906551_2.png) [@Roy\_Wierer.Seda145](https://forums.unrealengine.com/u/Roy_Wierer.Seda145)\ **Post date:** [February 24, 2023, 12:20am UTC](https://forums.unrealengine.com/t/ue5-1-bug-report-uuserwidget-nativeconstruct-ticks-when-the-asset-is-hovered/777424/2 "2023-02-24T00:20:55Z")
Alternating stacks: ```auto > UnrealEditor-ThatPlugin.dll!UMainMenuWidget::NativePreConstruct() Line 53 C++ UnrealEditor-UMG.dll!UUserWidget::OnWidgetRebuilt() Line 812 C++ UnrealEditor-UMG.dll!UWidget::TakeWidget_Private(TFunctionRef __cdecl(UUserWidget *,TSharedRef)> ConstructMethod) Line 999 C++ UnrealEditor-UMG.dll!UWidget::TakeWidget() Line 916 C++ UnrealEditor-UMGEditor.dll!FWidgetBlueprintEditorUtils::DrawSWidgetInRenderTargetInternal(UUserWidget * WidgetInstance, FRenderTarget * RenderTarget2D, UTextureRenderTarget2D * TextureRenderTarget, UE::Math::TVector2 ThumbnailSize, bool bIsForThumbnail, TOptional> ThumbnailCustomSize, EThumbnailPreviewSizeMode ThumbnailSizeMode) Line 2210 C++ UnrealEditor-UMGEditor.dll!FWidgetBlueprintEditorUtils::DrawSWidgetInRenderTargetForThumbnail(UUserWidget * WidgetInstance, FRenderTarget * RenderTarget2D, UE::Math::TVector2 ThumbnailSize, TOptional> ThumbnailCustomSize, EThumbnailPreviewSizeMode ThumbnailSizeMode) Line 2193 C++ UnrealEditor-UMGEditor.dll!UWidgetBlueprintThumbnailRenderer::Draw(UObject * Object, int X, int Y, unsigned int Width, unsigned int Height, FRenderTarget * RenderTarget, FCanvas * Canvas, bool bAdditionalViewFamily) Line 207 C++ UnrealEditor-UnrealEd.dll!ThumbnailTools::RenderThumbnail(UObject * InObject, const unsigned int InImageWidth, const unsigned int InImageHeight, ThumbnailTools::EThumbnailTextureFlushMode::Type InFlushMode, FTextureRenderTargetResource * InTextureRenderTargetResource, FObjectThumbnail * OutThumbnail) Line 4970 C++ UnrealEditor-UnrealEd.dll!FAssetThumbnailPool::LoadThumbnail(TSharedRef ThumbnailInfo, bool & bIsAssetStillCompiling, const FAssetData & CustomAssetToRender) Line 1198 C++ UnrealEditor-UnrealEd.dll!FAssetThumbnailPool::Tick(float DeltaTime) Line 1131 C++ UnrealEditor-UnrealEd.dll!FTickableEditorObject::TickObjects(const float DeltaSeconds) Line 50 C++ UnrealEditor-UnrealEd.dll!UEditorEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 1648 C++ UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 517 C++ UnrealEditor.exe!FEngineLoop::Tick() Line 5369 C++ [Inline Frame] UnrealEditor.exe!EngineTick() Line 66 C++ UnrealEditor.exe!GuardedMain(const wchar_t * CmdLine) Line 202 C++ UnrealEditor.exe!GuardedMainWrapper(const wchar_t * CmdLine) Line 107 C++ UnrealEditor.exe!LaunchWindowsStartup(HINSTANCE __* hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow, const wchar_t * CmdLine) Line 244 C++ UnrealEditor.exe!WinMain(HINSTANCE __* hInInstance, HINSTANCE__ * hPrevInstance, char * pCmdLine, int nCmdShow) Line 282 C++ ``` ```auto > UnrealEditor-ThatPlugin.dll!::operator()(const FLogCategory & LCategoryName, const wchar_t[7] & LFormat, const wchar_t * const & , const wchar_t * const & ) Line 53 C++ UnrealEditor-ThatPlugin.dll!DispatchCheckVerify,FLogCategory,wchar_t [7],wchar_t const *,wchar_t const *>(UMainMenuWidget::NativePreConstruct::__l9:: && Inner, const FLogCategory & , const wchar_t[7] & , const wchar_t * const & , const wchar_t * const & ) Line 172 C++ UnrealEditor-ThatPlugin.dll!UMainMenuWidget::NativePreConstruct() Line 53 C++ UnrealEditor-UMG.dll!UUserWidget::OnWidgetRebuilt() Line 812 C++ UnrealEditor-UMG.dll!UWidget::TakeWidget_Private(TFunctionRef __cdecl(UUserWidget *,TSharedRef)> ConstructMethod) Line 999 C++ UnrealEditor-UMG.dll!UWidget::TakeWidget() Line 916 C++ UnrealEditor-UMGEditor.dll!FWidgetBlueprintEditorUtils::DrawSWidgetInRenderTargetInternal(UUserWidget * WidgetInstance, FRenderTarget * RenderTarget2D, UTextureRenderTarget2D * TextureRenderTarget, UE::Math::TVector2 ThumbnailSize, bool bIsForThumbnail, TOptional> ThumbnailCustomSize, EThumbnailPreviewSizeMode ThumbnailSizeMode) Line 2210 C++ UnrealEditor-UMGEditor.dll!FWidgetBlueprintEditorUtils::DrawSWidgetInRenderTargetForThumbnail(UUserWidget * WidgetInstance, FRenderTarget * RenderTarget2D, UE::Math::TVector2 ThumbnailSize, TOptional> ThumbnailCustomSize, EThumbnailPreviewSizeMode ThumbnailSizeMode) Line 2193 C++ UnrealEditor-UMGEditor.dll!UWidgetBlueprintThumbnailRenderer::Draw(UObject * Object, int X, int Y, unsigned int Width, unsigned int Height, FRenderTarget * RenderTarget, FCanvas * Canvas, bool bAdditionalViewFamily) Line 207 C++ UnrealEditor-UnrealEd.dll!ThumbnailTools::RenderThumbnail(UObject * InObject, const unsigned int InImageWidth, const unsigned int InImageHeight, ThumbnailTools::EThumbnailTextureFlushMode::Type InFlushMode, FTextureRenderTargetResource * InTextureRenderTargetResource, FObjectThumbnail * OutThumbnail) Line 4970 C++ UnrealEditor-UnrealEd.dll!FAssetThumbnailPool::LoadThumbnail(TSharedRef ThumbnailInfo, bool & bIsAssetStillCompiling, const FAssetData & CustomAssetToRender) Line 1198 C++ UnrealEditor-UnrealEd.dll!FAssetThumbnailPool::Tick(float DeltaTime) Line 1131 C++ UnrealEditor-UnrealEd.dll!FTickableEditorObject::TickObjects(const float DeltaSeconds) Line 50 C++ UnrealEditor-UnrealEd.dll!UEditorEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 1648 C++ UnrealEditor-UnrealEd.dll!UUnrealEdEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 517 C++ UnrealEditor.exe!FEngineLoop::Tick() Line 5369 C++ [Inline Frame] UnrealEditor.exe!EngineTick() Line 66 C++ UnrealEditor.exe!GuardedMain(const wchar_t * CmdLine) Line 202 C++ UnrealEditor.exe!GuardedMainWrapper(const wchar_t * CmdLine) Line 107 C++ UnrealEditor.exe!LaunchWindowsStartup(HINSTANCE __* hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow, const wchar_t * CmdLine) Line 244 C++ UnrealEditor.exe!WinMain(HINSTANCE __* hInInstance, HINSTANCE__ * hPrevInstance, char * pCmdLine, int nCmdShow) Line 282 C++ ``` ---
**Author:** ![Roy\_Wierer.Seda145](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/roy_wierer.seda145/32/906551_2.png) [@Roy\_Wierer.Seda145](https://forums.unrealengine.com/u/Roy_Wierer.Seda145)\ **Post date:** [February 24, 2023, 12:22am UTC](https://forums.unrealengine.com/t/ue5-1-bug-report-uuserwidget-nativeconstruct-ticks-when-the-asset-is-hovered/777424/3 "2023-02-24T00:22:09Z")
We’re not seriously going to tick NativePreConstruct to show a thumbnail are we -\_-