I have editor crash when try remove foliage:
Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:C:\Unreal Engine\4.4\Engine\Source\Runtime\Core\Public\Containers\Array.h] [Line: 536]
Array index out of bounds: -1 from an array of size 1
Stack:
FWindowsPlatformStackWalk::StackWalkAndDump() 0xfa9a57e6 + 0 bytes [File=c:\unreal engine\4.4\engine\source\runtime\core\private\windows\windowsplatformstackwalk.cpp:177] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-Core.dll]
FDebug::AssertFailed() 0xfa844525 + 0 bytes [File=c:\unreal engine\4.4\engine\source\runtime\core\private\misc\outputdevice.cpp:203] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-Core.dll]
FFoliageMeshInfo::RemoveInstances() 0xf8269beb + 63 bytes [File=c:\unreal engine\4.4\engine\source\runtime\engine\private\instancedfoliage.cpp:372] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-Engine.dll]
FEdModeFoliage::RemoveInstancesForBrush() 0xe8833e42 + 0 bytes [File=c:\unreal engine\4.4\engine\source\editor\foliageedit\private\foliageedmode.cpp:806] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-FoliageEdit.dll]
FEdModeFoliage::ApplyBrush() 0xe87ef615 + 0 bytes [File=c:\unreal engine\4.4\engine\source\editor\foliageedit\private\foliageedmode.cpp:1203] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-FoliageEdit.dll]
FEdModeFoliage::Tick() 0xe883624c + 0 bytes [File=c:\unreal engine\4.4\engine\source\editor\foliageedit\private\foliageedmode.cpp:250] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-FoliageEdit.dll]
FEditorModeTools::Tick() 0xf5845343 + 0 bytes [File=c:\unreal engine\4.4\engine\source\editor\unrealed\private\editormodes.cpp:1750] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
FLevelEditorViewportClient::Tick() 0xf58ad79b + 0 bytes [File=c:\unreal engine\4.4\engine\source\editor\unrealed\private\leveleditorviewport.cpp:1795] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
UEditorEngine::Tick() 0xf5745bf8 + 15 bytes [File=c:\unreal engine\4.4\engine\source\editor\unrealed\private\editor.cpp:1264] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
UUnrealEdEngine::Tick() 0xf5b756c6 + 0 bytes [File=c:\unreal engine\4.4\engine\source\editor\unrealed\private\unrealedengine.cpp:252] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor-UnrealEd.dll]
FEngineLoop::Tick() 0xff32754e + 0 bytes [File=c:\unreal engine\4.4\engine\source\runtime\launch\private\launchengineloop.cpp:2098] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor.exe]
GuardedMain() 0xff31cc7c + 0 bytes [File=c:\unreal engine\4.4\engine\source\runtime\launch\private\launch.cpp:133] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor.exe]
GuardedMainWrapper() 0xff31ccea + 5 bytes [File=c:\unreal engine\4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:125] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor.exe]
WinMain() 0xff328ad9 + 17 bytes [File=c:\unreal engine\4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:201] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor.exe]
__tmainCRTStartup() 0xff329989 + 21 bytes [File=f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618] [in C:\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor.exe]
Address = 0x13ae16ad (filename not found) [in C:\Windows\system32\KERNEL32.DLL]
Address = 0x143434a5 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]
Address = 0x143434a5 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]