Attempting to Reimport multiple Data Tables that do not have associated data source files results in the Engine crashing. When a single Data Table is selected to be reimported, the Editor asks for the data source file to be selected. This does not occur when multiple Data Tables are selected.
The same crash has been reported involving texture and animation assets, but those cases were not tested successfully.
RESULT:
The Editor crashes with an Array index out of bounds error.
EXPECTED:
Reimport does nothing since there is no data source file associated with either Data Table.
Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Main-Builds\Stream\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 611] Array index out of bounds: 0 from an array of size 0 UE4Editor_Core!FDebug::AssertFailed() [d:\main-builds\stream\engine\source\runtime\core\private\misc\assertionmacros.cpp:422] UE4Editor_UnrealEd!FReimportManager::ValidateAllSourceFileAndReimport() [d:\main-builds\stream\engine\source\editor\unrealed\private\editor.cpp:427] UE4Editor_ContentBrowser!FAssetContextMenu::ExecuteReimport() [d:\main-builds\stream\engine\source\editor\contentbrowser\private\assetcontextmenu.cpp:1495] UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,FAssetContextMenu,0,void __cdecl(void)>::ExecuteIfSafe() [d:\main-builds\stream\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:355] UE4Editor_Slate!SMenuEntryBlock::OnClicked() [d:\main-builds\stream\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:1033] UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() [d:\main-builds\stream\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:988] UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl(void)>::Execute() [d:\main-builds\stream\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:279] UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\main-builds\stream\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:290] UE4Editor_Slate!SMenuEntryButton::OnMouseButtonUp() [d:\main-builds\stream\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:385] UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_1002768c627006711ef2f351a87ec0e7> >() [d:\main-builds\stream\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:270] UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\main-builds\stream\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5527] UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\main-builds\stream\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6086] UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\main-builds\stream\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6059] UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\main-builds\stream\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1799] UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\main-builds\stream\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2249] UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\main-builds\stream\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1479] UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\main-builds\stream\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:734] user32 user32 UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\main-builds\stream\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:130] UE4Editor!FEngineLoop::Tick() [d:\main-builds\stream\engine\source\runtime\launch\private\launchengineloop.cpp:3610] UE4Editor!GuardedMain() [d:\main-builds\stream\engine\source\runtime\launch\private\launch.cpp:174] UE4Editor!GuardedMainWrapper() [d:\main-builds\stream\engine\source\runtime\launch\private\windows\launchwindows.cpp:145] UE4Editor!WinMain() [d:\main-builds\stream\engine\source\runtime\launch\private\windows\launchwindows.cpp:276] UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:288] kernel32 ntdll
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-65521 in the post.