Description

Attempting to duplicate multiple child components results in an assert being thrown. 

Steps to Reproduce
  1. Create a Blueprint Class Actor
  2. Open up the Blueprint and add a component of Basic Shape Sphere
  3. Select the Sphere in the component window and duplicate it with CTRL+W
  4. There should be Sphere and Sphere1 now
  5. Select both Spheres and duplicate again with CTRL+W

Results: The Editor will crash.

Expected: That the Spheres would duplicate.

Callstack

Assertion failed: !DeferredOngoingCreateTransaction.IsValid() [Link Removed] [Line: 5120]

UE4Editor_Core!FWindowsErrorOutputDevice::Serialize() [e:\jeff.rogers_new_main\engine\source\runtime\core\private\windows\windowserroroutputdevice.cpp:79]
UE4Editor_Core!FOutputDevice::LogfImpl() [e:\jeff.rogers_new_main\engine\source\runtime\core\private\misc\outputdevice.cpp:71]
UE4Editor_Core!FDebug::AssertFailed() [e:\jeff.rogers_new_main\engine\source\runtime\core\private\misc\assertionmacros.cpp:446]
UE4Editor_Core!FDebug::CheckVerifyFailedImpl() [e:\jeff.rogers_new_main\engine\source\runtime\core\private\misc\assertionmacros.cpp:424]
UE4Editor_Kismet!SSCSEditor::AddNewComponent() [e:\jeff.rogers_new_main\engine\source\editor\kismet\private\sscseditor.cpp:5120]
UE4Editor_Kismet!SSCSEditor::OnDuplicateComponent() [e:\jeff.rogers_new_main\engine\source\editor\kismet\private\sscseditor.cpp:4099]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,SSCSEditor,0,void __cdecl(void)>::ExecuteIfSafe() [e:\jeff.rogers_new_main\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:355]
UE4Editor_Slate!FUICommandList::ConditionalProcessCommandBindings() [e:\jeff.rogers_new_main\engine\source\runtime\slate\private\framework\commands\uicommandlist.cpp:217]
UE4Editor_Slate!FUICommandList::ProcessCommandBindings() [e:\jeff.rogers_new_main\engine\source\runtime\slate\private\framework\commands\uicommandlist.cpp:161]
UE4Editor_Kismet!SSCSEditor::OnKeyDown() [e:\jeff.rogers_new_main\engine\source\editor\kismet\private\sscseditor.cpp:3798]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FKeyEvent,<lambda_21fddcfe5d8b6e57b707a8971995adc5> >() [e:\jeff.rogers_new_main\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:271]
UE4Editor_Slate!FSlateApplication::ProcessKeyDownEvent() [e:\jeff.rogers_new_main\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5141]
UE4Editor_Slate!FSlateApplication::OnKeyDown() [e:\jeff.rogers_new_main\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5049]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [e:\jeff.rogers_new_main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1678]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [e:\jeff.rogers_new_main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2295]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [e:\jeff.rogers_new_main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1523]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [e:\jeff.rogers_new_main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:773]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [e:\jeff.rogers_new_main\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [e:\jeff.rogers_new_main\engine\source\runtime\launch\private\launchengineloop.cpp:3955]
UE4Editor!GuardedMain() [e:\jeff.rogers_new_main\engine\source\runtime\launch\private\launch.cpp:173]
UE4Editor!GuardedMainWrapper() [e:\jeff.rogers_new_main\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
UE4Editor!WinMain() [e:\jeff.rogers_new_main\engine\source\runtime\launch\private\windows\launchwindows.cpp:275]
UE4Editor!__scrt_common_main_seh() [d:\agent\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

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Duplicate
ComponentGameplay - Blueprint
Affects Versions4.224.23
Target Fix4.22.2
CreatedApr 24, 2019
ResolvedApr 24, 2019
UpdatedApr 24, 2019