Unreal Engine Issues and Bug Tracker (UE-71931)

Description

Generated from CrashReporter

Steps to Reproduce

No known steps to reproduce

Danny B's Repro steps. (No longer occurs using these as of CL 5915309)

Download project from google drive [Link Removed]
Unrar the project
Open project in 4.22
Once the project is open in the content browser click filter ->Animation -> Blendspaces
The project will crash

Danny B's Repro steps. V2 (Fails on CL 5915309)

Download project from google drive [Link Removed]
Unrar the project
Open project in 4.22
Once the project is open in the content browser click filter ->Animation -> Blendspaces
Open 3-4 blendspaces
Open one of the animations related to a blend space (click the blendspace point, find the anim in the content browser)
Select anumber of the animations and hit delete and force delete the animations
Editor crashes

Callstack

UE4Editor-Engine!UBlendSpaceBase::GetSamplesFromBlendInput(FVector const &,TArray<FBlendSampleData,FDefaultAllocator> &) [BlendSpaceBase.cpp:677]
UE4Editor-Engine!UBlendSpaceBase::TickAssetPlayer(FAnimTickRecord &,FAnimNotifyQueue &,FAnimAssetTickContext &) [BlendSpaceBase.cpp:204]
UE4Editor-Engine!FAnimInstanceProxy::TickAssetPlayerInstances(float) [AnimInstanceProxy.cpp:749]
UE4Editor-Engine!FAnimInstanceProxy::UpdateAnimation() [AnimInstanceProxy.cpp:1108]
UE4Editor-Engine!UAnimInstance::UpdateAnimation(float,bool) [AnimInstance.cpp:456]
UE4Editor-Engine!USkeletalMeshComponent::TickAnimation(float,bool) [SkeletalMeshComponent.cpp:1002]
UE4Editor-UnrealEd!FBlendSpaceThumbnailScene::SetBlendSpace(UBlendSpaceBase *) [ThumbnailHelpers.cpp:750]
UE4Editor-UnrealEd!UBlendSpaceThumbnailRenderer::Draw(UObject *,int,int,unsigned int,unsigned int,FRenderTarget *,FCanvas *) [BlendSpaceThumbnailRenderer.cpp:27]
UE4Editor-UnrealEd!ThumbnailTools::RenderThumbnail(UObject *,unsigned int,unsigned int,ThumbnailTools::EThumbnailTextureFlushMode::Type,FTextureRenderTargetResource *,FObjectThumbnail *) [ObjectTools.cpp:3881]
UE4Editor-UnrealEd!FAssetThumbnailPool::Tick(float) [AssetThumbnail.cpp:1041]
UE4Editor-UnrealEd!FTickableEditorObject::TickObjects(float) [TickableEditorObject.h:47]
UE4Editor-UnrealEd!UEditorEngine::Tick(float,bool) [EditorEngine.cpp:1411]
UE4Editor-UnrealEd!UUnrealEdEngine::Tick(float,bool) [UnrealEdEngine.cpp:403]
UE4Editor!FEngineLoop::Tick() [LaunchEngineLoop.cpp:3967]
UE4Editor!GuardedMain(wchar_t const *,HINSTANCE__ *,HINSTANCE__ *,int) [Launch.cpp:168]
UE4Editor!GuardedMainWrapper(wchar_t const *,HINSTANCE__ *,HINSTANCE__ *,int) [LaunchWindows.cpp:145]
UE4Editor!WinMain  [LaunchWindows.cpp:275]
UE4Editor!__scrt_common_main_seh  [exe_common.inl:288]
KERNEL32!9c1b0000  + 181f4
ntdll!9eb00000  + 6a251


>	[Inline Frame] UE4Editor-Engine.dll!UAnimationAsset::GetSkeleton() Line 970	C++
 	UE4Editor-Engine.dll!UBlendSpaceBase::GetSamplesFromBlendInput(const FVector & BlendInput, TArray<FBlendSampleData,FDefaultAllocator> & OutSampleDataList) Line 682	C++
 	UE4Editor-Engine.dll!UBlendSpaceBase::TickAssetPlayer(FAnimTickRecord & Instance, FAnimNotifyQueue & NotifyQueue, FAnimAssetTickContext & Context) Line 208	C++
 	UE4Editor-Engine.dll!FAnimInstanceProxy::TickAssetPlayerInstances(float DeltaSeconds) Line 749	C++
 	UE4Editor-Engine.dll!FAnimInstanceProxy::UpdateAnimation() Line 1108	C++
 	UE4Editor-Engine.dll!UAnimInstance::UpdateAnimation(float DeltaSeconds, bool bNeedsValidRootMotion) Line 456	C++
 	UE4Editor-Engine.dll!USkeletalMeshComponent::TickAnimation(float DeltaTime, bool bNeedsValidRootMotion) Line 1002	C++
 	UE4Editor-UnrealEd.dll!FBlendSpaceThumbnailScene::SetBlendSpace(UBlendSpaceBase * InBlendSpace) Line 750	C++
 	UE4Editor-UnrealEd.dll!UBlendSpaceThumbnailRenderer::Draw(UObject * Object, int X, int Y, unsigned int Width, unsigned int Height, FRenderTarget * RenderTarget, FCanvas * Canvas) Line 27	C++
 	UE4Editor-UnrealEd.dll!ThumbnailTools::RenderThumbnail(UObject * InObject, const unsigned int InImageWidth, const unsigned int InImageHeight, ThumbnailTools::EThumbnailTextureFlushMode::Type InFlushMode, FTextureRenderTargetResource * InTextureRenderTargetResource, FObjectThumbnail * OutThumbnail) Line 3881	C++
 	UE4Editor-UnrealEd.dll!FAssetThumbnailPool::Tick(float DeltaTime) Line 1041	C++
 	UE4Editor-UnrealEd.dll!FTickableEditorObject::TickObjects(const float DeltaSeconds) Line 47	C++
 	UE4Editor-UnrealEd.dll!UEditorEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 1411	C++
 	UE4Editor-UnrealEd.dll!UUnrealEdEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 403	C++
 	UE4Editor.exe!FEngineLoop::Tick() Line 3967	C++
 	[Inline Frame] UE4Editor.exe!EngineTick() Line 62	C++
 	UE4Editor.exe!GuardedMain(const wchar_t * CmdLine, HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, int nCmdShow) Line 168	C++
 	UE4Editor.exe!GuardedMainWrapper(const wchar_t * CmdLine, HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, int nCmdShow) Line 145	C++
 	UE4Editor.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow) Line 275	C++
 	[External Code]

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Fixed

Component	OLD - Anim
Affects Versions	4.22
Target Fix	4.22.2

Fix Commit	6400364
Main Commit	6400365

Created	Mar 22, 2019
Resolved	May 9, 2019
Updated	May 26, 2019

UE-71931

[CrashReport] UE4Editor-Engine!UBlendSpaceBase::GetSamplesFromBlendInput(FVector const &,TArray<FBlendSampleData,FDefaultAllocator> &) [BlendSpaceBase.cpp:677]

[CrashReport] UE4Editor-Engine!UBlendSpaceBase::GetSamplesFromBlendInput(FVector const &,TArray<FBlendSampleData,FDefaultAllocator> &) [BlendSpaceBase.cpp:677]

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