Description

Looks like users have been seeing this since 4.18, added Bugg link

Steps to Reproduce
  1. Open an AnimBP
  2. Add two Bone Driven nodes
  3. Add a local to component node
  4. Select both nodes
  5. Shift click the local to component node
    Result
    Crash
Callstack
UE4Editor_Core!FDebug::AssertFailed()
 UE4Editor_PropertyEditor!FDetailLayoutBuilderImpl::GetPropertyNode()
 UE4Editor_PropertyEditor!FDetailCategoryImpl::AddProperty()
 UE4Editor_AnimGraph!UAnimGraphNode_BoneDrivenController::CustomizeDetails()
 UE4Editor_Persona!FAnimGraphNodeDetails::CustomizeDetails()
 UE4Editor_PropertyEditor!DetailLayoutHelpers::QueryCustomDetailLayout()
 UE4Editor_PropertyEditor!SDetailsViewBase::UpdateSinglePropertyMap()
 UE4Editor_PropertyEditor!SDetailsViewBase::UpdatePropertyMaps()
 UE4Editor_PropertyEditor!SDetailsView::PostSetObject()
 UE4Editor_PropertyEditor!SDetailsView::SetObjectArrayPrivate()
 UE4Editor_PropertyEditor!SDetailsView::SetObjects()
 UE4Editor_Kismet!SKismetInspector::MakeContextualEditingWidget()
 UE4Editor_Kismet!SKismetInspector::UpdateFromObjects()
 UE4Editor_Kismet!SKismetInspector::Tick()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_Slate!SBorder::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SOverlay::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_SlateCore!SPanel::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_Slate!SSplitter::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_Slate!SSplitter::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_Slate!SSplitter::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SOverlay::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_SlateCore!SPanel::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_Slate!SBorder::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SOverlay::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_SlateCore!SPanel::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_Slate!SSplitter::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SOverlay::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_SlateCore!SPanel::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
 UE4Editor_SlateCore!SPanel::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SOverlay::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_SlateCore!SCompoundWidget::OnPaint()
 UE4Editor_SlateCore!SWindow::OnPaint()
 UE4Editor_SlateCore!SWidget::Paint()
 UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren()
 UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren()
 UE4Editor_Slate!FSlateApplication::PrivateDrawWindows()
 UE4Editor_Slate!FSlateApplication::DrawWindows()
 UE4Editor_Slate!FSlateApplication::TickApplication()
 UE4Editor_Slate!FSlateApplication::Tick()
 UE4Editor!FEngineLoop::Tick()
 UE4Editor!GuardedMain()
 UE4Editor!GuardedMainWrapper()
 UE4Editor!WinMain()

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Fixed
ComponentOLD - Anim
Affects Versions4.19
Target Fix4.21
Fix Commit4301787
Main Commit4335668
Release Commit4399518
CreatedMay 2, 2018
ResolvedAug 20, 2018
UpdatedMay 18, 2020