Unreal Engine Issues and Bug Tracker (UE-53378)

Description

Can attach actors to each other through the use of sequencer even though actors are in different levels which leads to crashing when saving and changing levels

F3DAttachTrackEditor::IsActorPickable doesn't check if the two actors are in the same level

occurs in Dev-Sequencer

-See attached Dev-SequencerUGS file (Open persistent level < change to Map2 in Content Browser and select save)

Steps to Reproduce

Create an empty project
Save level (File < Save Current)
Create another level (File < New Level < Default)
Using the Levels tab(Window < Levels) set one to be persistent and one to be the sublevel
Create a new level sequence
Open the Persistent Level in the Content Browser
Add a Basic actor to the persistent level
Open the sequence and add the actor to it
Save
Open the Sublevel in the content browser
Add a Basic actor to the sublevel
Go into the level that is set to be the persistent
Add an attach track to the actor that was added to the sequence
Attach the actor that is in the sublevel to the actor in the sequence (attach < New Binding < The actor from the other level)
Move actor around a little and see that it is attached
Change between levels(using the content browser)
When prompted to save changes before changing the level (yes)
Crash occurs

Expected: Engine does not crash when actors are attached across levels and user changes between levels in Content Browser. (Saves changes before changing levels)
Result: Crash occurs when actors are attached and user changes between levels in Content Browser. (Saves changes before changing levels)

Callstack

 LoginId:bdcd2df1437ec38ad0d19c85e30ff2d1
EpicAccountId:1ed52ca976af4368b6c30d11b7cdc18f

Fatal error: [File:D:\Main Workspace\Engine\Source\Editor\UnrealEd\Private\EditorServer.cpp] [Line: 1929] /Game/Maps/Persistent.Persistent still around trying to load C:/Users/Ridley.Killeen/Desktop/MainUGS/Content/Maps/Map2.umap (Object is not currently rooted)

UE4Editor_Core!FDebug::AssertFailed() [d:\main workspace\engine\source\runtime\core\private\misc\assertionmacros.cpp:419]
UE4Editor_UnrealEd!UEditorEngine::CheckForWorldGCLeaks() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:1929]
UE4Editor_UnrealEd!UEditorEngine::EditorDestroyWorld() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:2062]
UE4Editor_UnrealEd!UEditorEngine::Map_Load() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:2414]
UE4Editor_UnrealEd!UEditorEngine::HandleMapCommand() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:5966]
UE4Editor_UnrealEd!UEditorEngine::Exec() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:5443]
UE4Editor_UnrealEd!UUnrealEdEngine::Exec() [d:\main workspace\engine\source\editor\unrealed\private\unrealedsrv.cpp:672]
UE4Editor_UnrealEd!FEditorFileUtils::LoadMap() [d:\main workspace\engine\source\editor\unrealed\private\filehelpers.cpp:2232]
UE4Editor_AssetTools!FAssetTypeActions_World::OpenAssetEditor() [d:\main workspace\engine\source\developer\assettools\private\assettypeactions\assettypeactions_world.cpp:26]
UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [d:\main workspace\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:361]
UE4Editor_AssetTools!FAssetTypeActions_Base::AssetsActivated() [d:\main workspace\engine\source\developer\assettools\public\assettypeactions_base.h:52]
UE4Editor_ContentBrowser!SContentBrowser::OnAssetsActivated() [d:\main workspace\engine\source\editor\contentbrowser\private\scontentbrowser.cpp:2072]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,TTypeWrapper<void> __cdecl(TArray<FAssetData,FDefaultAllocator> const & __ptr64,enum EAssetTypeActivationMethod::Type)>::Execute() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:269]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void __cdecl(TArray<FAssetData,FDefaultAllocator> const & __ptr64,enum EAssetTypeActivationMethod::Type)>::ExecuteIfSafe() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:345]
UE4Editor_ContentBrowser!SAssetView::OnListMouseButtonDoubleClick() [d:\main workspace\engine\source\editor\contentbrowser\private\sassetview.cpp:3956]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,TTypeWrapper<void> __cdecl(TSharedPtr<FAssetViewItem,0>)>::Execute() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:269]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,void __cdecl(TSharedPtr<FAssetViewItem,0>)>::ExecuteIfSafe() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:345]
UE4Editor_ContentBrowser!TBaseDelegate<void,TSharedPtr<FAssetViewItem,0> >::ExecuteIfBound() [d:\main workspace\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:624]
UE4Editor_ContentBrowser!SListView<TSharedPtr<FAssetViewItem,0> >::Private_OnItemDoubleClicked() [d:\main workspace\engine\source\runtime\slate\public\widgets\views\slistview.h:809]
UE4Editor_ContentBrowser!STableRow<TSharedPtr<FAssetViewItem,0> >::OnMouseButtonDoubleClick() [d:\main workspace\engine\source\runtime\slate\public\widgets\views\stablerow.h:288]
UE4Editor_Slate!<lambda_eeb33fd1b480e3cad58a1531d90d2e14>::operator()() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5867]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_eeb33fd1b480e3cad58a1531d90d2e14> >() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:266]
UE4Editor_Slate!FSlateApplication::RoutePointerDoubleClickEvent() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5865]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonDoubleClickEvent() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5852]
UE4Editor_Slate!FSlateApplication::OnMouseDoubleClick() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5828]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1730]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2172]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:889]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:726]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:129]
UE4Editor!FEngineLoop::Tick() [d:\main workspace\engine\source\runtime\launch\private\launchengineloop.cpp:3240]
UE4Editor!GuardedMain() [d:\main workspace\engine\source\runtime\launch\private\launch.cpp:166]
UE4Editor!GuardedMainWrapper() [d:\main workspace\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
UE4Editor!WinMain() [d:\main workspace\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

Callstack from Dev-Sequencer:

LoginId:bdcd2df1437ec38ad0d19c85e30ff2d1
EpicAccountId:1ed52ca976af4368b6c30d11b7cdc18f

Fatal error: [File:D:\Main Workspace\Engine\Source\Editor\UnrealEd\Private\EditorServer.cpp] [Line: 1929] /Game/Maps/Map1.Map1 still around trying to load C:/Users/Ridley.Killeen/Desktop/MainUGS/Content/Maps/Map2.umap (Object is not currently rooted)

UE4Editor_Core!FDebug::AssertFailed() [d:\main workspace\engine\source\runtime\core\private\misc\assertionmacros.cpp:419]
UE4Editor_UnrealEd!UEditorEngine::CheckForWorldGCLeaks() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:1929]
UE4Editor_UnrealEd!UEditorEngine::EditorDestroyWorld() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:2062]
UE4Editor_UnrealEd!UEditorEngine::Map_Load() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:2414]
UE4Editor_UnrealEd!UEditorEngine::HandleMapCommand() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:5966]
UE4Editor_UnrealEd!UEditorEngine::Exec() [d:\main workspace\engine\source\editor\unrealed\private\editorserver.cpp:5443]
UE4Editor_UnrealEd!UUnrealEdEngine::Exec() [d:\main workspace\engine\source\editor\unrealed\private\unrealedsrv.cpp:672]
UE4Editor_UnrealEd!FEditorFileUtils::LoadMap() [d:\main workspace\engine\source\editor\unrealed\private\filehelpers.cpp:2232]
UE4Editor_AssetTools!FAssetTypeActions_World::OpenAssetEditor() [d:\main workspace\engine\source\developer\assettools\private\assettypeactions\assettypeactions_world.cpp:26]
UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [d:\main workspace\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:361]
UE4Editor_AssetTools!FAssetTypeActions_Base::AssetsActivated() [d:\main workspace\engine\source\developer\assettools\public\assettypeactions_base.h:52]
UE4Editor_ContentBrowser!SContentBrowser::OnAssetsActivated() [d:\main workspace\engine\source\editor\contentbrowser\private\scontentbrowser.cpp:2072]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,TTypeWrapper<void> __cdecl(TArray<FAssetData,FDefaultAllocator> const & __ptr64,enum EAssetTypeActivationMethod::Type)>::Execute() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void __cdecl(TArray<FAssetData,FDefaultAllocator> const & __ptr64,enum EAssetTypeActivationMethod::Type)>::ExecuteIfSafe() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:434]
UE4Editor_ContentBrowser!SAssetView::OnListMouseButtonDoubleClick() [d:\main workspace\engine\source\editor\contentbrowser\private\sassetview.cpp:3949]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,TTypeWrapper<void> __cdecl(TSharedPtr<FAssetViewItem,0>)>::Execute() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,void __cdecl(TSharedPtr<FAssetViewItem,0>)>::ExecuteIfSafe() [d:\main workspace\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:434]
UE4Editor_ContentBrowser!TBaseDelegate<void,TSharedPtr<FAssetViewItem,0> >::ExecuteIfBound() [d:\main workspace\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:624]
UE4Editor_ContentBrowser!SListView<TSharedPtr<FAssetViewItem,0> >::Private_OnItemDoubleClicked() [d:\main workspace\engine\source\runtime\slate\public\widgets\views\slistview.h:809]
UE4Editor_ContentBrowser!STableRow<TSharedPtr<FAssetViewItem,0> >::OnMouseButtonDoubleClick() [d:\main workspace\engine\source\runtime\slate\public\widgets\views\stablerow.h:288]
UE4Editor_Slate!<lambda_eeb33fd1b480e3cad58a1531d90d2e14>::operator()() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5817]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_eeb33fd1b480e3cad58a1531d90d2e14> >() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:266]
UE4Editor_Slate!FSlateApplication::RoutePointerDoubleClickEvent() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5815]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonDoubleClickEvent() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5802]
UE4Editor_Slate!FSlateApplication::OnMouseDoubleClick() [d:\main workspace\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5778]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1730]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2172]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:889]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:726]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\main workspace\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:129]
UE4Editor!FEngineLoop::Tick() [d:\main workspace\engine\source\runtime\launch\private\launchengineloop.cpp:3251]
UE4Editor!GuardedMain() [d:\main workspace\engine\source\runtime\launch\private\launch.cpp:166]
UE4Editor!GuardedMainWrapper() [d:\main workspace\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
UE4Editor!WinMain() [d:\main workspace\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

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Fixed

Component	UE - Anim - Sequencer
Affects Versions	4.16.3, 4.17.2, 4.18.2, 4.19, 4.20
Target Fix	4.22

Fix Commit	4338844
Main Commit	4629913
Release Commit	4862694

Created	Dec 12, 2017
Resolved	Sep 1, 2018
Updated	Feb 12, 2019

View Jira Issue

UE-53378

Crash Occurs When Actors are Attached Across Persistent and Sublevels When Levels are Saved

Crash Occurs When Actors are Attached Across Persistent and Sublevels When Levels are Saved

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