Description

Editor crashes when right-clicking in the blank area of the anim blueprint asset picker

Steps to Reproduce
  1. Open Third Person Blueprint Template in UE4.15
  2. Open an anim blueprint
  3. In the upper right, click on the down arrow to reveal the asset shortcut drop down menu.
  4. Right-click in the blank area below the list of assets*
    Result: Crash occurs
    Expected: No crash, the editor to perform as expected
    *Note: This refers to the blank area in the drop down asset menu after the end of the list. If the list is too long, a blank area will not exist, but clicking after the last item, in this case, will sometimes trigger the crash.
Callstack

Assertion failed: Asset [Link Removed] [Line: 281]

UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349]
UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [d:\build\++ue4+release-4.15+compile\sync\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:281]
UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAssets() [d:\build\++ue4+release-4.15+compile\sync\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:374]
UE4Editor_Persona!SAssetShortcut::HandleAssetSelectedFromPicker() [d:\build\++ue4+release-4.15+compile\sync\engine\source\editor\persona\private\sassetfamilyshortcutbar.cpp:280]
UE4Editor_Persona!TBaseSPMethodDelegateInstance<0,SAssetShortcut,0,TTypeWrapper<void> __cdecl(FAssetData const & __ptr64)>::Execute() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327]
UE4Editor_Persona!TBaseSPMethodDelegateInstance<0,SAssetShortcut,0,void __cdecl(FAssetData const & __ptr64)>::ExecuteIfSafe() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:434]
UE4Editor_ContentBrowser!SAssetView::AssetSelectionChanged() [d:\build\++ue4+release-4.15+compile\sync\engine\source\editor\contentbrowser\private\sassetview.cpp:3562]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,TTypeWrapper<void> __cdecl(TSharedPtr<FAssetViewItem,0>,enum ESelectInfo::Type)>::Execute() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,void __cdecl(TSharedPtr<FAssetViewItem,0>,enum ESelectInfo::Type)>::ExecuteIfSafe() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:434]
UE4Editor_ContentBrowser!TBaseDelegate<void,TSharedPtr<FAssetViewItem,0>,enum ESelectInfo::Type>::ExecuteIfBound() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:624]
UE4Editor_ContentBrowser!SListView<TSharedPtr<FAssetViewItem,0> >::Private_SignalSelectionChanged() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slate\public\widgets\views\slistview.h:720]
UE4Editor_ContentBrowser!SListView<TSharedPtr<FAssetViewItem,0> >::OnMouseButtonUp() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slate\public\widgets\views\slistview.h:430]
UE4Editor_Slate!<lambda_6fe3fac4210ea4fdbbd9f162046616f6>::operator()() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5111]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_6fe3fac4210ea4fdbbd9f162046616f6> >() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:238]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5098]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5531]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5508]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:1698]
UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:2120]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:867]
UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:714]
user32
user32
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:980]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2977]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\launch\private\launch.cpp:166]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
UE4Editor!WinMain() [d:\build\++ue4+release-4.15+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:264]
kernel32
ntdll

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Fixed
ComponentOLD - Anim
Affects Versions4.15
Target Fix4.16
Fix Commit3344764
Main Commit3362661
CreatedMar 10, 2017
ResolvedMar 14, 2017
UpdatedApr 27, 2018
Pull Requests
3366 - ENiGMA9
View Jira Issue