Crash when pressing the Edit Map button for the Rendering Component of the Paper Tile Map Actor. If a new empty map is created first, the crash doesn't occur.
User Description:
Whenever I try to click on "Edit Map" in a PaperTileMapActor blueprint, the editor crashes. (on Windows x64)
Crash reproductible on two different computers running Windows 10 x64 and UE4.16.2-3514769
Update: The crash is also reproductible on a Macbook Pro running OSX Sierra
Results: The editor crashes on button press
Expected: For the Map Editor to be opened with a Create New Empty Map button or for the Edit Map button to be grayed out until a new map has been created
LoginId:a1be990b4855275a6b8acdb5d49d864a EpicAccountId:75f47e038a8442f0af6c18e1f38eeb85 Assertion failed: Asset [File:D:\Build\++UE4+Release-4.16+Compile\Sync\Engine\Source\Editor\UnrealEd\Private\Toolkits\AssetEditorManager.cpp] [Line: 283] UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349] UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [d:\build\++ue4+release-4.16+compile\sync\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:283] UE4Editor_Paper2DEditor!FPaperTileMapDetailsCustomization::EnterTileMapEditingMode() [d:\build\++ue4+release-4.16+compile\sync\engine\plugins\2d\paper2d\source\paper2deditor\private\tilemapediting\papertilemapdetailscustomization.cpp:324] UE4Editor_Paper2DEditor!TMemberFunctionCaller<FPaperTileMapDetailsCustomization,FReply (__cdecl FPaperTileMapDetailsCustomization::*)(void) __ptr64>::operator()<>() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\public\delegates\delegateinstanceinterface.h:165] UE4Editor_Paper2DEditor!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<FPaperTileMapDetailsCustomization,FReply (__cdecl FPaperTileMapDetailsCustomization::*)(void) __ptr64> >() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\public\templates\tuple.h:497] UE4Editor_Paper2DEditor!TBaseSPMethodDelegateInstance<0,FPaperTileMapDetailsCustomization,0,FReply __cdecl(void)>::Execute() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327] UE4Editor_Slate!TBaseDelegate<FReply>::Execute() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:537] UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:278] UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator()() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5049] UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:239] UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5038] UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5515] UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5495] UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:1704] UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:2127] UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:867] UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:714] user32 user32 UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:1009] UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3058] UE4Editor!GuardedMain() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\launch\private\launch.cpp:166] UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.16+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134] UE4Editor!WinMain() [d:\build\++ue4+release-4.16+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
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