Description

This is an intermittent crash coming out of the 4.17.1 release. I have not been able to find any record of this occurring in 4.17.0, so it may actually be a regression with the hotfix. Users have not provided any descriptions of their actions when the crashes occurred.

Source Context

 133       	// this is used in editor only when used for transition getter
  134       	// this doesn't mean max time. In Sequence, this is SequenceLength,
  135       	// but for BlendSpace CurrentTime is normalized [0,1], so this is 1
  136       	virtual float GetMaxCurrentTime() override { return SequenceLength; }
  137       	//~ End UAnimationAsset Interface
  138       
  139       	/**
  140       	* Get Bone Transform of the Time given, relative to Parent for all RequiredBones
  141       	* This returns different transform based on additive or not. Or what kind of additive.
  142       	*
  143       	* @param	OutPose				Pose object to fill
  144       	* @param	OutCurve			Curves to fill
  145       	* @param	ExtractionContext	Extraction Context (position, looping, root motion, etc.)
  146       	*/
  147 ***** 	ENGINE_API virtual void GetAnimationPose(struct FCompactPose& OutPose, FBlendedCurve& OutCurve, const FAnimExtractContext& ExtractionContext) const PURE_VIRTUAL(UAnimSequenceBase::GetAnimationPose, );
  148       	
  149       	virtual void HandleAssetPlayerTickedInternal(FAnimAssetTickContext &Context, const float PreviousTime, const float MoveDelta, const FAnimTickRecord &Instance, struct FAnimNotifyQueue& NotifyQueue) const;
  150       
  151       	virtual bool HasRootMotion() const { return false; }
  152       
  153       	virtual void Serialize(FArchive& Ar) override;
Steps to Reproduce

repro steps currently unknown

Callstack
LowLevelFatalError [File:D:\Build\++UE4+Release-4.17+Compile\Sync\Engine\Source\Runtime\Engine\Classes\Animation/AnimSequenceBase.h] [Line: 148] 
Pure virtual not implemented (UAnimSequenceBase::GetAnimationPose)

UE4Editor_Engine!UAnimSequenceBase::GetAnimationPose() [animsequencebase.h:148]
UE4Editor_AnimGraphRuntime!FAnimNode_SequenceEvaluator::Evaluate_AnyThread() [animnode_sequenceevaluator.cpp:85]
UE4Editor_Engine!FPoseLink::Evaluate() [animnodebase.cpp:276]
UE4Editor_AnimGraphRuntime!FAnimNode_MultiWayBlend::Evaluate_AnyThread() [animnode_multiwayblend.cpp:125]
UE4Editor_Engine!FPoseLink::Evaluate() [animnodebase.cpp:276]
UE4Editor_AnimGraphRuntime!FAnimNode_ApplyAdditive::Evaluate_AnyThread() [animnode_applyadditive.cpp:49]
UE4Editor_AnimGraphRuntime!FAnimSequencerInstanceProxy::Evaluate() [animsequencerinstanceproxy.cpp:16]
UE4Editor_Engine!FAnimInstanceProxy::EvaluateAnimation() [animinstanceproxy.cpp:903]
UE4Editor_Engine!UAnimInstance::ParallelEvaluateAnimation() [animinstance.cpp:560]
UE4Editor_Engine!USkeletalMeshComponent::EvaluateAnimation() [skeletalmeshcomponent.cpp:1582]
UE4Editor_Engine!USkeletalMeshComponent::PerformAnimationEvaluation() [skeletalmeshcomponent.cpp:1657]
UE4Editor_Engine!FParallelAnimationEvaluationTask::DoTask() [skeletalmeshcomponent.cpp:101]
UE4Editor_Engine!TGraphTask<FParallelAnimationEvaluationTask>::ExecuteTask() [taskgraphinterfaces.h:784]
UE4Editor_Core!FTaskThreadAnyThread::ProcessTasks() [taskgraph.cpp:907]
UE4Editor_Core!FTaskThreadAnyThread::ProcessTasksUntilQuit() [taskgraph.cpp:785]
UE4Editor_Core!FTaskThreadBase::Run() [taskgraph.cpp:501]
UE4Editor_Core!FRunnableThreadWin::Run() [windowsrunnablethread.cpp:76]

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Fixed
ComponentOLD - Anim
Affects Versions4.17
Target Fix4.17.2
Fix Commit3604609
CreatedAug 22, 2017
ResolvedAug 23, 2017
UpdatedMay 18, 2020
View Jira Issue