Crash when manipulating Bone Space IK before setting EffectorSpaceBoneName

  513       const FTransform& ParentTransform = GetComponentSpaceTransform(ParentIndex);
  514       const FTransform& BoneTransform = Pose[BoneIndex];
  515       // calculate local space
  516       return BoneTransform.GetRelativeTransform(ParentTransform);
  517       }
  518       }
  519       
  520       return Pose[BoneIndex];
  521       }
  522       
  523       template<class PoseType>
  524       const FTransform& FCSPose<PoseType>::GetComponentSpaceTransform(BoneIndexType BoneIndex)
  525       {
  526       checkSlow(Pose.IsValid());
  527 ***** check(Pose.IsValidIndex(BoneIndex));
  528       
  529       check(!Pose[BoneIndex].ContainsNaN());
  530       // if not evaluate, calculate it
  531       if (ComponentSpaceFlags[BoneIndex] == 0)
  532       {
  533       CalculateComponentSpaceTransform(BoneIndex);
  534       }
  535       check(!Pose[BoneIndex].ContainsNaN());
  536       return Pose[BoneIndex];
  537       }
  538       
  539       template<class PoseType>
  540       void FCSPose<PoseType>::SetComponentSpaceTransform(BoneIndexType BoneIndex, const FTransform& NewTransform)
  541       {
  542       checkSlow(Pose.IsValid());

UE4Editor_AnimGraph!FCSPose<FCompactHeapPose>::GetComponentSpaceTransform() [bonepose.h:528]
UE4Editor_AnimGraph!FAnimNodeEditMode::ConvertCSVectorToBoneSpace() [animnodeeditmode.cpp:518]
UE4Editor_AnimGraph!FTwoBoneIKEditMode::DoTranslation() [twoboneikeditmode.cpp:279]
UE4Editor_AnimGraph!FAnimNodeEditMode::InputDelta() [animnodeeditmode.cpp:275]
UE4Editor_UnrealEd!FEditorModeTools::InputDelta() [editormodemanager.cpp:688]
UE4Editor_UnrealEd!FEditorViewportClient::InputWidgetDelta() [editorviewportclient.cpp:3054]
UE4Editor_UnrealEd!FEditorViewportClient::UpdateMouseDelta() [editorviewportclient.cpp:2020]
UE4Editor_UnrealEd!FEditorViewportClient::Tick() [editorviewportclient.cpp:1114]
UE4Editor_Persona!FAnimationViewportClient::Tick() [animationeditorviewportclient.cpp:466]
UE4Editor_UnrealEd!UEditorEngine::Tick() [editorengine.cpp:1698]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [unrealedengine.cpp:391]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3025]
UE4Editor!GuardedMain() [launch.cpp:166]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134]
UE4Editor!WinMain() [launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:264]
kernel32!<Unknown>
ntdll!<Unknown>