Description

Opening a DataTable that is set to a Struct that is using a Key variable will crash the editor

User Description:

I'm getting this crash when using Key variable in DataTable.

I was able to repro it in an empty project :

Create a Struct

Add a "Key" variable

Create a DataTable using that Struct

Open DataTable : Crash

Steps to Reproduce

1. Open QA-Game
2. Create a new Struct & open it
3. Change the variable to a Key type
4. Save & close
5. Create a DataTable
6. When prompted, choose the Struct that you just created
7. Double-click to open the DataTable

Results: The editor will crash

Expected: For the DataTable to open and be editable

Callstack

MachineId:DE189244480D3CD0F8CA729A02DD38A6
EpicAccountId:75f47e038a8442f0af6c18e1f38eeb85

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

"Assertion failed: StructPtrs.Num() != 0 [File[Image Removed]:\BuildFarm\buildmachine_++depot+UE4-Releases+4.9\Engine\Source\Editor\DetailCustomizations\Private\KeyStructCustomi

UE4Editor_Core!FSlowTask::GetCurrentMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\misc\feedbackcontext.h:264]
UE4Editor_UnrealEd!SSlowTaskWidget::GetProgressText() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\editor\unrealed\private\feedbackcontexteditor.cpp:301]
UE4Editor_UnrealEd!SSlowTaskWidget::GetMainTextFont() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\editor\unrealed\private\feedbackcontexteditor.cpp:255]
UE4Editor_UnrealEd!TMemberFunctionCaller<SSlowTaskWidget,FSlateFontInfo (__cdecl SSlowTaskWidget::*)(void)const __ptr64>::operator()<>() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegateinstanceinterface_variadics.h:161]
UE4Editor_UnrealEd!TTupleImpl<TIntegerSequence<> >::ApplyAfter_ExplicitReturnType<FSlateFontInfo,TMemberFunctionCaller<SSlowTaskWidget,FSlateFontInfo (__cdecl SSlowTaskWidget::*)(void)const __ptr64> >() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\tuple.h:113]
UE4Editor_UnrealEd!TBaseSPMethodDelegateInstance<1,SSlowTaskWidget,0,FSlateFontInfo __cdecl(void)>::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
UE4Editor_Slate!TBaseDelegate<FSlateFontInfo>::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:440]
UE4Editor_Slate!TAttribute<FSlateFontInfo>::Get() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\misc\attribute.h:135]
UE4Editor_Slate!STextBlock::GetFont() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\widgets\text\stextblock.cpp:40]
UE4Editor_Slate!STextBlock::GetComputedTextStyle() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\widgets\text\stextblock.cpp:271]
UE4Editor_Slate!STextBlock::ComputeDesiredSize() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\widgets\text\stextblock.cpp:180]
UE4Editor_SlateCore!SWidget::CacheDesiredSize() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:405]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:399]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:394]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:394]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:394]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:394]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:394]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:394]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\private\widgets\swidget.cpp:394]
UE4Editor_Slate!PrepassWindowAndChildren() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1054]
UE4Editor_Slate!FSlateApplication::DrawPrepass() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1077]
UE4Editor_Slate!FSlateApplication::PrivateDrawWindows() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1143]
UE4Editor_Slate!FSlateApplication::DrawWindows() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:927]
UE4Editor_Slate!FSlateApplication::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1441]
UE4Editor!FEngineLoop::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\launchengineloop.cpp:2461]
UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]

Have Comments or More Details?

Head over to the existingAnswerHub thread and let us know what's up.

0
Login to Vote

Fixed
ComponentTools
Affects Versions4.9.24.104.11
Target Fix4.11
Fix Commit2756105
Main Commit2800829
CreatedNov 3, 2015
ResolvedNov 5, 2015
UpdatedJun 16, 2016