Unreal Engine Issues and Bug Tracker (UE-161277)

Description

This is not a regression. Tested in //UE4/Release-4.27 CL18319896

Crash occurs when duplicating a State Machine in the My Blueprint panel within an Animation blueprint.

Steps to Reproduce

Create or open any project
Make a new Animation Blueprint based on the TutorialTPP_Skeleton
In the AnimGraph create an empty(or populated) State Machine
In the My Blueprint panel right click the newly create State Machine
Select Duplicate

Expected Results:
The State Machine is duplicated and accessible.

Actual Results:
The editor crashes:

Assertion failed: DuplicatedGraph [File:D:\build\++UE5\Sync\Engine\Source\Editor\Kismet\Private\SMyBlueprint.cpp] [Line: 3218]

Callstack

Assertion failed: DuplicatedGraph [File:D:\build\++UE5\Sync\Engine\Source\Editor\Kismet\Private\SMyBlueprint.cpp] [Line: 3218]

UnrealEditor-Kismet!SMyBlueprint::OnDuplicateAction() [SMyBlueprint.cpp:3218]
UnrealEditor-Kismet!TBaseSPMethodDelegateInstance<0,SMyBlueprint,1,void ,FDefaultDelegateUserPolicy>::ExecuteIfSafe() [DelegateInstancesImpl.h:307]
UnrealEditor-Slate!7ff976be0000  + 10b158
UnrealEditor-Slate!7ff976be0000  + 1ed551
UnrealEditor-Slate!7ff976be0000  + 1ee520
UnrealEditor-Slate!7ff976be0000  + 1d0944
UnrealEditor-Slate!7ff976be0000  + 26ba3b
UnrealEditor-Slate!7ff976be0000  + 292df6
UnrealEditor-Slate!7ff976be0000  + 1ee60c
UnrealEditor-Slate!7ff976be0000  + 34034
UnrealEditor-Slate!7ff976be0000  + 16fc6
UnrealEditor-Slate!7ff976be0000  + 902ee
UnrealEditor-Slate!7ff976be0000  + 791b1
UnrealEditor-Slate!7ff976be0000  + 6d5dc
UnrealEditor-ApplicationCore!FWindowsApplication::ProcessDeferredMessage(FDeferredWindowsMessage const &) [WindowsApplication.cpp:2210]
UnrealEditor-ApplicationCore!FWindowsApplication::DeferMessage(TSharedPtr<FWindowsWindow,1> &,HWND__ *,unsigned int,unsigned __int64,__int64,int,int,unsigned int) [WindowsApplication.cpp:2699]
UnrealEditor-ApplicationCore!FWindowsApplication::ProcessMessage(HWND__ *,unsigned int,unsigned __int64,__int64) [WindowsApplication.cpp:1078]
UnrealEditor-ApplicationCore!FWindowsApplication::AppWndProc(HWND__ *,unsigned int,unsigned __int64,__int64) [WindowsApplication.cpp:916]
USER32!7ff9ccca0000  + 15c0d
USER32!7ff9ccca0000  + 15602
UnrealEditor-ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages(bool) [WindowsPlatformApplicationMisc.cpp:138]
UnrealEditor!7ff670d70000  + 7114
UnrealEditor!7ff670d70000  + 20d9c
UnrealEditor!7ff670d70000  + 20e8a
UnrealEditor!7ff670d70000  + 23c4d
UnrealEditor!7ff670d70000  + 35564
UnrealEditor!7ff670d70000  + 38736
KERNEL32!7ff9ccb30000  + 17c24
ntdll!7ff9ce4e0000  + 6d721

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Fixed

Component	UE - Anim - Runtime - Anim Blueprints
Affects Versions	5.0.3
Target Fix	5.1

Fix Commit	21480583
Main Commit	21480583

Created	Aug 17, 2022
Resolved	Aug 22, 2022
Updated	Sep 10, 2022