Access violation - code c0000005 (first/second chance not available)

UE4Editor_UnrealEd!FTransaction::Apply() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\editortransaction.cpp:467]
UE4Editor_UnrealEd!UTransBuffer::Undo() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\editortransaction.cpp:855]
UE4Editor_UnrealEd!UEditorEngine::Exec_Transaction() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\editorserver.cpp:5139]
UE4Editor_UnrealEd!UEditorEngine::Exec() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\editorserver.cpp:5586]
UE4Editor_UnrealEd!UUnrealEdEngine::Exec() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\unrealedsrv.cpp:615]
UE4Editor_MainFrame!FMainFrameActionCallbacks::ExecuteExecCommand() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\mainframe\private\frame\mainframeactions.cpp:937]
UE4Editor_MainFrame!TBaseStaticDelegateInstance<void __cdecl(void),FString>::ExecuteIfSafe() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:1018]
UE4Editor_Slate!FUICommandList::ConditionalProcessCommandBindings() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\commands\uicommandlist.cpp:211]
UE4Editor_Slate!FUICommandList::ProcessCommandBindings() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\commands\uicommandlist.cpp:155]
UE4Editor_MainFrame!FMainFrameActionCallbacks::OnUnhandledKeyDownEvent() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\mainframe\private\frame\mainframeactions.cpp:175]
UE4Editor_MainFrame!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<FReply (__cdecl*const & __ptr64)(FKeyEvent const & __ptr64),FKeyEvent const & __ptr64>() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\tuple.h:116]
UE4Editor_MainFrame!TBaseStaticDelegateInstance<FReply __cdecl(FKeyEvent const & __ptr64)>::Execute() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:949]
UE4Editor_Slate!TBaseDelegate<FReply,FKeyEvent const & __ptr64>::Execute() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:522]
UE4Editor_Slate!FSlateApplication::ProcessKeyDownEvent() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4637]
UE4Editor_Slate!FSlateApplication::OnKeyDown() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4539]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:1487]
UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:2071]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:814]
UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:678]
user32
user32
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:951]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2811]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launch.cpp:152]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll