Description

Updated name of sublevel leads to crash when it is about to be loaded.

Steps to Reproduce

1) Add a sublevel from levels tab

2) Press eye button to unload it

3) Go to content browser, change the sublevel's name

4) Back to levels tab, press eye button to load it

Expected: The name of map is updated, the map is visible

Result: The name of map is updated, Editor crashes.

Callstack

Assertion failed: Level->bIsVisible == bShouldBeVisible [Link Removed] [Line: 1021]

UE4Editor_Core!FWindowsErrorOutputDevice::Serialize() [d:\build\++ue4\sync\engine\source\runtime\core\private\windows\windowserroroutputdevice.cpp:79]
UE4Editor_Core!FOutputDevice::LogfImpl() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\outputdevice.cpp:71]
UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:440]
UE4Editor_Core!FDebug::CheckVerifyFailedImpl() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:418]
UE4Editor_UnrealEd!UEditorLevelUtils::SetLevelVisibility() [d:\build\++ue4\sync\engine\source\editor\unrealed\private\editorlevelutils.cpp:1021]
UE4Editor_WorldBrowser!FLevelModel::SetVisible() [d:\build\++ue4\sync\engine\source\editor\worldbrowser\private\levelmodel.cpp:259]
UE4Editor_WorldBrowser!FLevelCollectionModel::ShowLevels() [d:\build\++ue4\sync\engine\source\editor\worldbrowser\private\levelcollectionmodel.cpp:477]
UE4Editor_WorldBrowser!WorldHierarchy::FLevelModelTreeItem::SetVisible() [d:\build\++ue4\sync\engine\source\editor\worldbrowser\private\worldtreeitemtypes.cpp:342]
UE4Editor_WorldBrowser!WorldHierarchy::FLevelModelTreeItem::OnToggleVisibility() [d:\build\++ue4\sync\engine\source\editor\worldbrowser\private\worldtreeitemtypes.cpp:293]
UE4Editor_WorldBrowser!SWorldHierarchyItem::OnToggleVisibility() [d:\build\++ue4\sync\engine\source\editor\worldbrowser\private\sworldhierarchyitem.cpp:403]
UE4Editor_WorldBrowser!TBaseSPMethodDelegateInstance<0,SWorldHierarchyItem,0,FReply __cdecl(void)>::Execute() [d:\build\++ue4\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:279]
UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\build\++ue4\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:293]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_6c1f6b862bcfb82ea6dcab28fbcc9463> >() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:271]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5594]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6199]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6172]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1842]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2292]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1522]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:772]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3882]
UE4Editor!GuardedMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launch.cpp:168]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
UE4Editor!WinMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:275]
UE4Editor!__scrt_common_main_seh() [d:\agent\_work\3\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

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Fixed
ComponentTools
Affects Versions4.224.21.2
Target Fix4.23
Fix Commit5764399
CreatedApr 2, 2019
ResolvedApr 5, 2019
UpdatedApr 18, 2019