Crashes when i launch the game

Here is the report, sorry i cant figure out how to make it a spoiler os something of that sort.

MachineId:EA2C9FF7488AFCD4221EA5ACD2D2D75B
EpicAccountId:7067d918606a49e7907090c1d570b32a

Assertion failed: IsValidIndex(Index) && ChunkIndex < NumChunks && Index < MaxTotalElements [File:d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\UObject/NameTypes.h] [Line: 349] 



UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:332]
UE4Editor_Core!FName::GetDisplayNameEntry() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\uobject\unrealnames.cpp:874]
UE4Editor_Core!FName::ToString() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\uobject\unrealnames.cpp:880]
UE4Editor_UnrealEd!UCookOnTheFlyServer::Cache() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\cookontheflyserver.cpp:672]
UE4Editor_UnrealEd!UCookOnTheFlyServer::TickCookOnTheSide() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\cookontheflyserver.cpp:2090]
UE4Editor_UnrealEd!UCookOnTheFlyServer::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\cookontheflyserver.cpp:770]
UE4Editor_UnrealEd!FTickableEditorObject::TickObjects() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\public\tickableeditorobject.h:17]
UE4Editor_UnrealEd!UEditorEngine::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:1195]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\unrealedengine.cpp:371]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2859]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launch.cpp:152]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll

Hi help101boy,

Please review the following link: HOW TO REPORT A BUG -It is of particular importance that you describe in as much detail as possible the events leading up to the bug as well as that you hit the submit button in the Crash Reporter window so that we can locate your crash and compare it with crashes from other users experiencing the same crash.

After reviewing the linked documentation above, please post as much of the requested information as possible and we will continue to investigate this issue.

Steve H.