Description

If a return node is removed from an interface that has been implemented in a blueprint, compiling the blueprint will cause a crash.

Crash Reporter:

[Link Removed]

Frequency: 2/2

Steps to Reproduce

Steps reported by user [reproduced internally]
1. Create a new blank blueprints project without starter content
2. Create a new actor and a new interface
3. Make the interface accept and return a boolean
4. Make the actor implement the interface
5. Remove the return from the interface, compile the interface and switched to the actor
6. Open the actor bp>interface function, compile

Callstack

MachineId:4E82586D46B558EA69EF0EAA821297B1
EpicAccountId:1558531203f84e81b70959b8a59badef

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

UE4Editor_GraphEditor!SNodeTitle::GetHeadTitle() + 67 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\grapheditor\private\sgraphnode.cpp:59]
UE4Editor_GraphEditor!TMemberFunctionCaller<SNodeTitle,FText (__cdecl SNodeTitle::*)(void)const __ptr64>::operator()<>() + 48 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\delegates\delegateinstanceinterface_variadics.h:161]
UE4Editor_GraphEditor!TTupleImpl<TIntegerSequence<> >::ApplyAfter_ExplicitReturnType<FText,TMemberFunctionCaller<SNodeTitle,FText (__cdecl SNodeTitle::*)(void)const __ptr64> >() + 25 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\delegates\tuple.h:113]
UE4Editor_GraphEditor!TBaseSPMethodDelegateInstance<1,SNodeTitle,0,FText __cdecl(void)>::Execute() + 89 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
UE4Editor_Slate!TBaseDelegate<FText>::Execute() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:439]
UE4Editor_Slate!TAttribute<FText>::Get() + 56 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\misc\attribute.h:135]
UE4Editor_Slate!FTextBlockLayout::ComputeDesiredSize() + 650 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\widgets\text\textblocklayout.cpp:42]
UE4Editor_Slate!STextBlock::ComputeDesiredSize() + 218 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\widgets\text\stextblock.cpp:186]
UE4Editor_SlateCore!SWidget::CacheDesiredSize() + 23 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:392]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_SlateCore!SWidget::SlatePrepass() + 163 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:380]
UE4Editor_Slate!PrepassWindowAndChildren() + 548 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:984]
UE4Editor_Slate!FSlateApplication::DrawPrepass() + 551 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1029]
UE4Editor_Slate!FSlateApplication::PrivateDrawWindows() + 523 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1068]
UE4Editor_Slate!FSlateApplication::Tick() + 2879 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1323]
UE4Editor!FEngineLoop::Tick() + 4447 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launchengineloop.cpp:2284]
UE4Editor!GuardedMain() + 1404 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

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Fixed
ComponentUE - Gameplay - Blueprint
Affects Versions4.7.4
Target Fix4.9
Fix Commit2625595
Release Commit2625623
CreatedApr 8, 2015
ResolvedJul 20, 2015
UpdatedApr 27, 2018
View Jira Issue