Once you add two postprocess volumes (one to the persistent level and one to a sublevel) then add a blendable element to each, and then try to select both a crash will occur.
RESULT
Crash on an assert in FWeightedBlendableCustomization::CustomizeHeader.
EXPECTED
Both postprocess volumes are selected.
UE4Editor_DetailCustomizations!FWeightedBlendableCustomization::CustomizeHeader() postprocesssettingscustomization.cpp:287 UE4Editor_PropertyEditor!FDetailPropertyRow::OnItemNodeInitialized() detailpropertyrow.cpp:213 UE4Editor_PropertyEditor!FDetailItemNode::InitPropertyEditor() detailitemnode.cpp:98 UE4Editor_PropertyEditor!FDetailItemNode::Initialize() detailitemnode.cpp:46 UE4Editor_PropertyEditor!FDetailPropertyRow::GenerateChildrenForPropertyNode() detailpropertyrow.cpp:287 UE4Editor_PropertyEditor!FDetailPropertyRow::OnGenerateChildren() detailpropertyrow.cpp:239 UE4Editor_PropertyEditor!FDetailItemNode::GenerateChildren() detailitemnode.cpp:228 UE4Editor_PropertyEditor!FDetailPropertyRow::GenerateChildrenForPropertyNode() detailpropertyrow.cpp:287 UE4Editor_PropertyEditor!FDetailPropertyRow::OnGenerateChildren() detailpropertyrow.cpp:239 UE4Editor_PropertyEditor!FDetailItemNode::GenerateChildren() detailitemnode.cpp:228 UE4Editor_PropertyEditor!FDetailPropertyRow::GenerateChildrenForPropertyNode() detailpropertyrow.cpp:258 UE4Editor_PropertyEditor!FDetailPropertyRow::OnGenerateChildren() detailpropertyrow.cpp:239 UE4Editor_PropertyEditor!FDetailItemNode::GenerateChildren() detailitemnode.cpp:228 UE4Editor_PropertyEditor!FDetailCategoryImpl::GenerateNodesFromCustomizations() detailcategorybuilderimpl.cpp:627 UE4Editor_PropertyEditor!FDetailCategoryImpl::GenerateChildrenForSingleLayout() detailcategorybuilderimpl.cpp:649 UE4Editor_PropertyEditor!FDetailCategoryImpl::GenerateChildrenForLayouts() detailcategorybuilderimpl.cpp:687 UE4Editor_PropertyEditor!FDetailCategoryImpl::GenerateLayout() detailcategorybuilderimpl.cpp:833 UE4Editor_PropertyEditor!FDetailLayoutBuilderImpl::BuildCategories() detaillayoutbuilderimpl.cpp:154 UE4Editor_PropertyEditor!FDetailLayoutBuilderImpl::GenerateDetailLayout() detaillayoutbuilderimpl.cpp:189 UE4Editor_PropertyEditor!SDetailsViewBase::UpdateSinglePropertyMap() sdetailsviewbase.cpp:382 UE4Editor_PropertyEditor!SDetailsViewBase::UpdatePropertyMaps() sdetailsviewbase.cpp:347 UE4Editor_PropertyEditor!SDetailsView::PostSetObject() sdetailsview.cpp:779 UE4Editor_PropertyEditor!SDetailsView::SetObjectArrayPrivate() sdetailsview.cpp:569 UE4Editor_PropertyEditor!SDetailsView::SetObjects() sdetailsview.cpp:318 UE4Editor_LevelEditor!SActorDetails::SetObjects() sactordetails.cpp:205 UE4Editor_LevelEditor!SLevelEditor::OnActorSelectionChanged() sleveleditor.cpp:1463 UE4Editor_LevelEditor!TBaseSPMethodDelegateInstance<0,SLevelEditor,0,TTypeWrapper<void> __cdecl() delegateinstancesimpl.h:318 UE4Editor_LevelEditor!TBaseSPMethodDelegateInstance<0,SLevelEditor,0,void __cdecl() delegateinstancesimpl.h:425 UE4Editor_LevelEditor!TBaseMulticastDelegate<void,TArray<UObject * __ptr64,FDefaultAllocator> const & __ptr64,bool>::Broadcast() delegatesignatureimpl.inl:922 UE4Editor_UnrealEd!UUnrealEdEngine::UpdateFloatingPropertyWindowsFromActorList() editorhook.cpp:68 UE4Editor_UnrealEd!UUnrealEdEngine::UpdateFloatingPropertyWindows() editorhook.cpp:59 UE4Editor_UnrealEd!UUnrealEdEngine::NoteSelectionChange() editorselectutils.cpp:403 UE4Editor_UnrealEd!UUnrealEdEngine::SelectActor() editorselectutils.cpp:633 UE4Editor_UnrealEd!ClickHandlers::ClickActor() levelviewportclickhandlers.cpp:272 UE4Editor_UnrealEd!FLevelEditorViewportClient::ProcessClick() leveleditorviewport.cpp:1938 UE4Editor_UnrealEd!FEditorViewportClient::ProcessClickInViewport() editorviewportclient.cpp:2577 UE4Editor_UnrealEd!FEditorViewportClient::InputKey() editorviewportclient.cpp:2345 UE4Editor_UnrealEd!FLevelEditorViewportClient::InputKey() leveleditorviewport.cpp:2491 UE4Editor_Engine!FSceneViewport::OnMouseButtonUp() sceneviewport.cpp:535 UE4Editor_Slate!SViewport::OnMouseButtonUp() sviewport.cpp:181 UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:5010 UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:215 UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:4999 UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5462 UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5439 UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1652 UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:2071 UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:814 UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:678 user32!UserCallWinProcCheckWow() user32!DispatchMessageWorker() UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:951 UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2811 UE4Editor!GuardedMain() launch.cpp:152 UE4Editor!GuardedMainWrapper() launchwindows.cpp:126 UE4Editor!WinMain() launchwindows.cpp:202 UE4Editor!__scrt_common_main_seh() exe_common.inl:264 kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
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