Unreal Engine Issues and Bug Tracker (UE-52374)

Description

Adding a variable of Post Process Settings structure to a blueprint causes the editor to crash when the blueprint is compiled.

Regression:
Yes - Editor did not crash on compile in 4.17.2 (CL 3658906)

Steps to Reproduce

Open UE4 Editor (Any project)
Add blueprint based on actor (ActorBP)
Add variable based on Post Process Settings
Place get node of the variable in the event graph
Compile blueprint

Result:
Editor crashes immediately on compile

Expected:
Post Process Settings node can be used in blueprints

Callstack

LoginId:7156c35640f86204e61b8383f45dee17
EpicAccountId:c807849e05a0413d99e379f2802cae9c

Assertion failed: BaseOffset != NULL [File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Editor\PropertyEditor\Private\Presentation\PropertyEditor\PropertyEditor.cpp] [Line: 630]

UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:414]
UE4Editor_PropertyEditor!FPropertyEditor::IsEditConditionMet() [d:\build\++ue4+release-4.18+compile\sync\engine\source\editor\propertyeditor\private\presentation\propertyeditor\propertyeditor.cpp:632]
UE4Editor_PropertyEditor!SEditConditionWidget::OnGetEditConditionCheckState() [d:\build\++ue4+release-4.18+compile\sync\engine\source\editor\propertyeditor\private\propertyeditorhelpers.cpp:373]
UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<1,SEditConditionWidget,0,enum ECheckBoxState __cdecl(void)>::Execute() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327]
UE4Editor_Slate!TAttribute<enum ECheckBoxState>::Get() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\public\misc\attribute.h:137]
UE4Editor_Slate!SCheckBox::OnGetCheckImage() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\widgets\input\scheckbox.cpp:244]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<1,SCheckBox,0,FSlateBrush const * __ptr64 __cdecl(void)>::Execute() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327]
UE4Editor_Slate!TAttribute<FSlateBrush const * __ptr64>::Get() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\public\misc\attribute.h:137]
UE4Editor_Slate!SImage::ComputeDesiredSize() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\widgets\images\simage.cpp:45]
UE4Editor_SlateCore!SWidget::CacheDesiredSize() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:519]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_SlateCore!SWidget::SlatePrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slatecore\private\widgets\swidget.cpp:502]
UE4Editor_Slate!PrepassWindowAndChildren() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1343]
UE4Editor_Slate!PrepassWindowAndChildren() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1352]
UE4Editor_Slate!FSlateApplication::DrawPrepass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1391]
UE4Editor_Slate!FSlateApplication::PrivateDrawWindows() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1433]
UE4Editor_Slate!FSlateApplication::DrawWindows() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1190]
UE4Editor_Slate!FSlateApplication::TickApplication() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1777]
UE4Editor_Slate!FSlateApplication::Tick() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1595]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3378]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\launch.cpp:166]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
UE4Editor!WinMain() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
kernel32
ntdll

Community References

[Kismet Blueprint] Bug with big structs

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Fixed

Component	UE - Gameplay - Blueprint
Affects Versions	4.18
Target Fix	4.19

Fix Commit	3819322
Main Commit	3856245
Release Commit	3819466

Created	Nov 14, 2017
Resolved	Jan 2, 2018
Updated	Apr 27, 2018

UE-52374

Editor crash in blueprint after compiling Post Process Settings node setings

Editor crash in blueprint after compiling Post Process Settings node setings

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