This is a common crash in the 4.16 release. It seems related to creating a parameter in the Material Editor, however users have not provided any descriptions so additional information is not currently available.
Source Context
2687 bool FMaterialEditor::OnCanPromoteToParameter()
2688 {
2689 UEdGraphPin* TargetPin = GraphEditor->GetGraphPinForMenu();
2690
2691 ***** if (TargetPin->LinkedTo.Num() == 0)
2692 {
2693 return GetOnPromoteToParameterClass(TargetPin) != nullptr;
2694 }
2695
2696 return false;
2697 }
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) UE4Editor_MaterialEditor!FMaterialEditor::OnCanPromoteToParameter() [materialeditor.cpp:2692] UE4Editor_MaterialEditor!TBaseSPMethodDelegateInstance<0,FMaterialEditor,0,bool __cdecl() [delegateinstancesimpl.h:327] UE4Editor_Slate!FUICommandList::CanExecuteAction() [uicommandlist.cpp:111] UE4Editor_Slate!SMenuEntryBlock::IsEnabled() [smenuentryblock.cpp:1099] UE4Editor_Slate!TBaseSPMethodDelegateInstance<1,SMenuEntryBlock,0,bool __cdecl() [delegateinstancesimpl.h:327] UE4Editor_SlateCore!TAttribute<bool>::Get() [attribute.h:137] UE4Editor_SlateCore!SCompoundWidget::OnPaint() [scompoundwidget.cpp:37] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SOverlay::OnPaint() [soverlay.cpp:102] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [spanel.cpp:46] UE4Editor_SlateCore!SPanel::OnPaint() [spanel.cpp:21] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [spanel.cpp:46] UE4Editor_SlateCore!SPanel::OnPaint() [spanel.cpp:21] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [spanel.cpp:46] UE4Editor_SlateCore!SPanel::OnPaint() [spanel.cpp:21] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SOverlay::OnPaint() [soverlay.cpp:102] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [spanel.cpp:46] UE4Editor_SlateCore!SPanel::OnPaint() [spanel.cpp:21] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SCompoundWidget::OnPaint() [scompoundwidget.cpp:37] UE4Editor_Slate!SScrollBox::OnPaint() [sscrollbox.cpp:960] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SCompoundWidget::OnPaint() [scompoundwidget.cpp:37] UE4Editor_Slate!SBorder::OnPaint() [sborder.cpp:86] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!SCompoundWidget::OnPaint() [scompoundwidget.cpp:37] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:776] UE4Editor_SlateCore!FSlateWindowElementList::FDeferredPaint::ExecutePaint() [drawelements.cpp:680] UE4Editor_SlateCore!FSlateWindowElementList::PaintDeferred() [drawelements.cpp:705] UE4Editor_SlateCore!SWidget::Paint() [swidget.cpp:803] UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren() [slateapplication.cpp:1192] UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren() [slateapplication.cpp:1281] UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren() [slateapplication.cpp:1281] UE4Editor_Slate!FSlateApplication::PrivateDrawWindows() [slateapplication.cpp:1432] UE4Editor_Slate!FSlateApplication::DrawWindows() [slateapplication.cpp:1149] UE4Editor_Slate!FSlateApplication::TickApplication() [slateapplication.cpp:1726] UE4Editor_Slate!FSlateApplication::Tick() [slateapplication.cpp:1548] UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3182] UE4Editor!GuardedMain() [launch.cpp:166] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:253] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-46556 in the post.
| 0 |
| Component | UE - Rendering Architecture - Materials |
|---|---|
| Affects Versions | 4.16, 4.16.1 |
| Created | Jun 27, 2017 |
|---|---|
| Resolved | Jun 27, 2017 |
| Updated | Nov 2, 2021 |