Description

UPDATE:
Date: 2/5/2015
Likely an instance of the same crash: [Link Removed]

CrashReporter Bugg (Crash List): [Link Removed]

When updating a project from UE4.4.3 to UE4.5.1 editor crashes when adjusting the slider on the axis of a blend space in the animation window. While unable to reproduce in house, this issue has been reported by multiple users (approximately 4 known to date.)
*The user in the link provided is blending between only 2 animations

CALLSTACK:
<unknown module>! KERNELBASE!RaiseException()
<unknown module>! UE4Editor_Core!FOutputDeviceWindowsError::Serialize()
<unknown module>! UE4Editor_Core!FOutputDevice::Logf__VA()
<unknown module>! UE4Editor_Core!FDebug::AssertFailed()
<unknown module>! UE4Editor_Persona!SBlendSpace1DWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_Slate!SBorder::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_SlateCore!SPanel::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SOverlay::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_SlateCore!SPanel::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_Slate!SBorder::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SOverlay::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_SlateCore!SPanel::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_Slate!SSplitter::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_Slate!SSplitter::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_Slate!SSplitter::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SOverlay::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_SlateCore!SPanel::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_Slate!SBorder::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SOverlay::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_SlateCore!SPanel::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_Slate!SSplitter::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SOverlay::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_SlateCore!SPanel::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SPanel::PaintArrangedChildren()
<unknown module>! UE4Editor_SlateCore!SPanel::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SOverlay::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SCompoundWidget::OnPaint()
<unknown module>! UE4Editor_SlateCore!SWidget::Paint()
<unknown module>! UE4Editor_SlateCore!SWindow::PaintWindow()
<unknown module>! UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren()
<unknown module>! UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren()
<unknown module>! UE4Editor_Slate!FSlateApplication::PrivateDrawWindows()
<unknown module>! UE4Editor_Slate!FSlateApplication::Tick()
<unknown module>! UE4Editor!FEngineLoop::Tick()
<unknown module>! UE4Editor!GuardedMain()
<unknown module>! UE4Editor!GuardedMainWrapper()
<unknown module>! UE4Editor!WinMain()
<unknown module>! UE4Editor!__tmainCRTStartup()

Steps to Reproduce

[Not Reproduced Internally]

Open a third person project containing an animation that includes a 1D blend space.
Open blend space animation
Click slider on blend axis to transition between animations
*This reportedly causes a crash according to a few reports on the Answer Hub, despite being unable to reproduce "in-house."

Have Comments or More Details?

Head over to the existingAnswerHub thread and let us know what's up.

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Cannot Reproduce
ComponentAnim - Animation
Affects Versions4.54.5.1
CreatedOct 28, 2014
ResolvedNov 6, 2014
UpdatedApr 27, 2018