Description

When a spline component point is selected, attempting to select another spline component will cause the editor to crash. Crash also occurs if the same component is selected.

Workaround:
If the empty space in the blueprint viewport is clicked before selecting the second spline component, the editor does not crash.

Steps to Reproduce
  1. Open UE4 Editor (any project)
  2. Add Blueprint based on actor (ActorBP)
  3. Add Spline Component to ActorBP
  4. Select spline point along component
  5. Close and reopen blueprint
  6. Select Spline Component in component hierarchy

Result:
Editor crashes when component is selected.

Callstack
MachineId:7156C35640F86204E61B8383F45DEE17
EpicAccountId:e8c7fa630b6440f69a25a2c64d6c482c

Access violation - code c0000005 (first/second chance not available)

UE4Editor_DetailCustomizations!FSplinePointDetails::UpdateValues() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\detailcustomizations\private\splinecomponentdetails.cpp:421]
UE4Editor_PropertyEditor!FDetailItemNode::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\propertyeditor\private\detailitemnode.cpp:360]
UE4Editor_PropertyEditor!FDetailLayoutBuilderImpl::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\propertyeditor\private\detaillayoutbuilderimpl.cpp:536]
UE4Editor_PropertyEditor!SDetailsViewBase::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\propertyeditor\private\sdetailsviewbase.cpp:1152]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:689]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_Slate!SBox::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\widgets\layout\sbox.cpp:235]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_Slate!SBorder::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:86]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_Slate!SBorder::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:86]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SOverlay::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:100]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_Slate!SSplitter::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:166]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SOverlay::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:100]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_Slate!SBorder::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:86]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SOverlay::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:100]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_Slate!SSplitter::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:166]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SOverlay::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:100]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SPanel::PaintArrangedChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:44]
UE4Editor_SlateCore!SPanel::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\spanel.cpp:19]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SOverlay::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:100]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_SlateCore!SCompoundWidget::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:25]
UE4Editor_SlateCore!SWindow::OnPaint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swindow.cpp:1809]
UE4Editor_SlateCore!SWidget::Paint() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:692]
UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1127]
UE4Editor_Slate!FSlateApplication::PrivateDrawWindows() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1367]
UE4Editor_Slate!FSlateApplication::DrawWindows() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1084]
UE4Editor_Slate!FSlateApplication::TickApplication() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1689]
UE4Editor_Slate!FSlateApplication::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1481]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2894]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launch.cpp:152]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll

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Fixed
ComponentTools
Affects Versions4.14.34.15
Target Fix4.15
Fix Commit3258478
Main Commit3389599
Release Commit3258478
CreatedJan 12, 2017
ResolvedJan 16, 2017
UpdatedApr 27, 2018