Crash when changing Animation Segment Playrate in Animation Composite

UnrealEditor-DetailCustomizations.patch_0.exe!FAnimMontageSegmentDetails::GetAnimationSegment() Line 374 C++  
UnrealEditor-DetailCustomizations.patch_0.exe!FAnimMontageSegmentDetails::GetAnimationSegment() Line 374 C++  
UnrealEditor-DetailCustomizations.patch_0.exe!FAnimMontageSegmentDetails::GetPlayRate() Line 360 C++  
UnrealEditor-DetailCustomizations.patch_0.exe!TBaseRawMethodDelegateInstance<1,FAnimMontageSegmentDetails const ,TOptional<float> __cdecl(void),FDefaultDelegateUserPolicy>::Execute() Line 455 C++ 
UnrealEditor-DetailCustomizations.patch_0.exe!TAttribute<TOptional<float>>::Get() Line 250 C++  UnrealEditor-DetailCustomizations.patch_0.exe!SNumericEntryBox<float>::OnGetValueForSpinBox() Line 493 C++  
UnrealEditor-DetailCustomizations.patch_0.exe!TBaseSPMethodDelegateInstance<1,SNumericEntryBox<float> const ,1,float __cdecl(void),FDefaultDelegateUserPolicy>::Execute() Line 293 C++  [Inline Frame] 
UnrealEditor-DetailCustomizations.patch_0.exe!TDelegate<float __cdecl(void),FDefaultDelegateUserPolicy>::Execute() Line 588 C++  UnrealEditor-DetailCustomizations.patch_0.exe!TAttribute<float>::Get() Line 250 C++ 
UnrealEditor-DetailCustomizations.patch_0.exe!SSpinBox<float>::TextField_OnTextCommitted(const FText & NewText, ETextCommit::Type CommitInfo) Line 945 C++  
UnrealEditor-DetailCustomizations.patch_0.exe!TBaseSPMethodDelegateInstance<0,SSpinBox<float>,1,void __cdecl(FText const &,enum ETextCommit::Type),FDefaultDelegateUserPolicy>::ExecuteIfSafe(const FText & <Params_0>, ETextCommit::Type <Params_1>) Line 312 C++  
UnrealEditor-Slate.dll!FSlateEditableTextLayout::HandleFocusLost(const FFocusEvent & InFocusEvent) Line 929 C++  
UnrealEditor-Slate.dll!FSlateApplication::SetUserFocus(FSlateUser & User, const FWidgetPath & InFocusPath, const EFocusCause InCause) Line 2873 C++  
UnrealEditor-Slate.dll!FSlateApplication::SetUserFocus(const unsigned int InUserIndex, const FWidgetPath & InFocusPath, const EFocusCause InCause) Line 2727 C++  
UnrealEditor-Slate.dll!FSlateApplication::RoutePointerDownEvent(const FWidgetPath & WidgetsUnderPointer, const FPointerEvent & PointerEvent) Line 4970 C++  
UnrealEditor-Slate.dll!FSlateApplication::ProcessMouseButtonDownEvent(const TSharedPtr<FGenericWindow,1> & PlatformWindow, const FPointerEvent & MouseEvent) Line 4859 C++  
UnrealEditor-Slate.dll!FSlateApplication::OnMouseDown(const TSharedPtr<FGenericWindow,1> & PlatformWindow, const EMouseButtons::Type Button, const UE::Math::TVector2<double> CursorPos) Line 4757 C++  
UnrealEditor-ApplicationCore.dll!FWindowsApplication::ProcessDeferredMessage(const FDeferredWindowsMessage & DeferredMessage) Line 2228 C++  
UnrealEditor-ApplicationCore.dll!FWindowsApplication::DeferMessage(TSharedPtr<FWindowsWindow,1> & NativeWindow, HWND__ * InHWnd, unsigned int InMessage, unsigned __int64 InWParam, __int64 InLParam, int MouseX, int MouseY, unsigned int RawInputFlags) Line 2727 C++  
UnrealEditor-ApplicationCore.dll!FWindowsApplication::ProcessMessage(HWND__ * hwnd, unsigned int msg, unsigned __int64 wParam, __int64 lParam) Line 1088 C++  
[Inline Frame] UnrealEditor-ApplicationCore.dll!WindowsApplication_WndProc(HWND__ *) Line 920 C++  UnrealEditor-ApplicationCore.dll!FWindowsApplication::AppWndProc(HWND__ * hwnd, unsigned int msg, unsigned __int64 wParam, __int64 lParam) Line 926 C++ 
[External Code]   
[Inline Frame] UnrealEditor-ApplicationCore.dll!WinPumpMessages() Line 113 C++  
UnrealEditor-ApplicationCore.dll!FWindowsPlatformApplicationMisc::PumpMessages(bool bFromMainLoop) Line 142 C++  
UnrealEditor.exe!FEngineLoop::Tick() Line 5271 C++  
[Inline Frame] UnrealEditor.exe!EngineTick() Line 62 C++  
UnrealEditor.exe!GuardedMain(const wchar_t * CmdLine) Line 186 C++ 
UnrealEditor.exe!LaunchWindowsStartup(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow, const wchar_t * CmdLine) Line 279 C++  
UnrealEditor.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * pCmdLine, int nCmdShow) Line 337 C++  [External Code]