Crash editor after editing property of TwoBoneIK node

void FTwoBoneIKEditMode::EnterMode(UAnimGraphNode_Base* InEditorNode, FAnimNode_Base* InRuntimeNode)
{
    TwoBoneIKRuntimeNode = static_cast<FAnimNode_TwoBoneIK*>(InRuntimeNode);
    TwoBoneIKGraphNode = CastChecked<UAnimGraphNode_TwoBoneIK>(InEditorNode);

// NodePropertyDelegateHandle = TwoBoneIKGraphNode->OnNodePropertyChanged().AddSP(this, &FTwoBoneIKEditMode::OnExternalNodePropertyChange);
    PreviousBoneSpace = TwoBoneIKGraphNode->Node.EffectorLocationSpace;

    FAnimNodeEditMode::EnterMode(InEditorNode, InRuntimeNode);
}

void FTwoBoneIKEditMode::ExitMode()
{
    // TwoBoneIKGraphNode->OnNodePropertyChanged().Remove(NodePropertyDelegateHandle);

    TwoBoneIKGraphNode = nullptr;
    TwoBoneIKRuntimeNode = nullptr;

    FAnimNodeEditMode::ExitMode();
}

LoginId:a28409704427cc781fafa5b458893007
EpicAccountId:4d49d23287c94dd7bee3dbfe98e8728eUnhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000UE4Editor_AnimGraph!FTwoBoneIKEditMode::OnExternalNodePropertyChange() [D:\Build\++UE4\Sync\Engine\Source\Editor\AnimGraph\Private\EditModes\TwoBoneIKEditMode.cpp:191]
UE4Editor_AnimGraph!TBaseSPMethodDelegateInstance<0,FTwoBoneIKEditMode,0,void __cdecl(FPropertyChangedEvent &),FDefaultDelegateUserPolicy>::ExecuteIfSafe() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:307]
UE4Editor_AnimGraph!UAnimGraphNode_Base::PostEditChangeProperty() [D:\Build\++UE4\Sync\Engine\Source\Editor\AnimGraph\Private\AnimGraphNode_Base.cpp:66]
UE4Editor_AnimGraph!UAnimGraphNode_SkeletalControlBase::PostEditChangeProperty() [D:\Build\++UE4\Sync\Engine\Source\Editor\AnimGraph\Private\AnimGraphNode_SkeletalControlBase.cpp:452]
UE4Editor_CoreUObject!UObject::PostEditChangeChainProperty() [D:\Build\++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp:454]
UE4Editor_PropertyEditor!FPropertyNode::NotifyPostChange() [D:\Build\++UE4\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyNode.cpp:2342]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [D:\Build\++UE4\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyHandleImpl.cpp:522]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [D:\Build\++UE4\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyHandleImpl.cpp:291]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [D:\Build\++UE4\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyHandleImpl.cpp:120]
UE4Editor_PropertyEditor!FPropertyHandleBool::SetValue() [D:\Build\++UE4\Sync\Engine\Source\Editor\PropertyEditor\Private\PropertyHandleImpl.cpp:3649]
UE4Editor_PropertyEditor!SPropertyEditorBool::OnCheckStateChanged() [D:\Build\++UE4\Sync\Engine\Source\Editor\PropertyEditor\Private\UserInterface\PropertyEditor\SPropertyEditorBool.cpp:85]
UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<0,SPropertyEditorBool,0,void __cdecl(enum ECheckBoxState),FDefaultDelegateUserPolicy>::ExecuteIfSafe() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:307]
UE4Editor_Slate!SCheckBox::ToggleCheckedState() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SCheckBox.cpp:355]
UE4Editor_Slate!SCheckBox::OnMouseButtonUp() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SCheckBox.cpp:244]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_cc5aea9e7377b04ce85c30c65ec3889b> >() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:378]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:4815]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5356]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5321]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [D:\Build\++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2178]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [D:\Build\++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2642]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [D:\Build\++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:1046]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [D:\Build\++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:878]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [D:\Build\++UE4\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsPlatformApplicationMisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4748]
UE4Editor!GuardedMain() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:169]
UE4Editor!GuardedMainWrapper() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
UE4Editor!WinMain() [D:\Build\++UE4\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:268]
UE4Editor!__scrt_common_main_seh() [d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll