Unreal Engine Issues and Bug Tracker (UE-67748)

Description

Crash when duplicating an UMG Animation and not renaming the Duplicate

Hitting Enter correctly warns the user you have an existing Animation by that name, and doesn't crash

Reproduced in //UE4/Release-4.21 at CL 4668964

Steps to Reproduce

Create a Blank Blueprint Project
Create a User Interface > Widget Blueprint, name it anything
Open the Widget Blueprint
Create an Animation, name it anything
Right click the Animation, select Duplicate
Click elsewhere on the screen

Result:
Crash:

Fatal error: [File:D:\P4_Workspaces\Patrick.Finegan_RDU-WD-7067_Switch2\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp] [Line: 200] Renaming an object (WidgetAnimation /Game/NewWidgetBlueprint.NewWidgetBlueprint:NewAnimation_0) on top of an existing object (WidgetAnimation /Game/NewWidgetBlueprint.NewWidgetBlueprint:NewAnimation_1) is not allowed

Callstack

Fatal error: [File:D:\P4_Workspaces\Patrick.Finegan_RDU-WD-7067_Switch2\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp] [Line: 200] Renaming an object (WidgetAnimation /Game/NewWidgetBlueprint.NewWidgetBlueprint:NewAnimation_0) on top of an existing object (WidgetAnimation /Game/NewWidgetBlueprint.NewWidgetBlueprint:NewAnimation_1) is not allowed

UE4Editor_Core!FDebug::AssertFailed() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\core\private\misc\assertionmacros.cpp:413]
UE4Editor_CoreUObject!UObject::Rename() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\coreuobject\private\uobject\obj.cpp:200]
UE4Editor_UMGEditor!SWidgetAnimationListItem::OnNameTextCommited() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\editor\umgeditor\private\tabfactory\animationtabsummoner.cpp:200]
UE4Editor_UMGEditor!TBaseSPMethodDelegateInstance<0,SWidgetAnimationListItem,0,void __cdecl(FText const &,enum ETextCommit::Type)>::ExecuteIfSafe() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:355]
UE4Editor_Slate!SInlineEditableTextBlock::OnTextBoxCommitted() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\slate\private\widgets\text\sinlineeditabletextblock.cpp:293]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SInlineEditableTextBlock,0,void __cdecl(FText const &,enum ETextCommit::Type)>::ExecuteIfSafe() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:355]
UE4Editor_Slate!FSlateEditableTextLayout::HandleFocusLost() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\slate\private\widgets\text\slateeditabletextlayout.cpp:788]
UE4Editor_Slate!FSlateApplication::SetUserFocus() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:2923]
UE4Editor_Slate!FSlateApplication::RoutePointerDownEvent() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5484]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonDownEvent() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5379]
UE4Editor_Slate!FSlateApplication::OnMouseDown() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5292]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1850]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2292]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1522]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:772]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\launch\private\launchengineloop.cpp:3807]
UE4Editor!GuardedMain() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\launch\private\launch.cpp:174]
UE4Editor!GuardedMainWrapper() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
UE4Editor!WinMain() [d:\p4_workspaces\patrick.finegan_rdu-wd-7067_switch2\engine\source\runtime\launch\private\windows\launchwindows.cpp:276]
UE4Editor!__scrt_common_main_seh() [d:\agent\_work\3\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

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Fixed

Component	UE - Anim - Sequencer
Affects Versions	4.21, 4.22
Target Fix	4.22

Fix Commit	4704838
Main Commit	4773320
Release Commit	4862694

Created	Dec 19, 2018
Resolved	Jan 10, 2019
Updated	Feb 12, 2019

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