I keep crashing everytime I try to launch any of my projects.
MachineId:0AE2F897437939817791A99B81CA6352
EpicAccountId:9d53679bb24d4795b8f51259eabeeeef
Fatal error: [File:D:\Build\++UE4+Release-4.12+Compile\Sync\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp] [Line: 1575]
Failed to compile default material WorldGridMaterial!
UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\core\private\misc\outputdevice.cpp:440]
UE4Editor_Engine!FMaterial::CacheShaders() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:1575]
UE4Editor_Engine!FMaterial::CacheShaders() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\materials\materialshared.cpp:1469]
UE4Editor_Engine!UMaterial::CacheShadersForResources() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:2017]
UE4Editor_Engine!UMaterial::CacheResourceShadersForRendering() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:1935]
UE4Editor_Engine!UMaterial::PostLoad() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:2581]
UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:748]
UE4Editor_Engine!UMaterialInterface::PostLoadDefaultMaterials() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:387]
UE4Editor_Engine!UMaterial::PostLoad() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\materials\material.cpp:2395]
UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:748]
UE4Editor_CoreUObject!EndLoad() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:1452]
UE4Editor_CoreUObject!LoadPackageInternal() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:1171]
UE4Editor_CoreUObject!LoadPackageInternal() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:1286]
UE4Editor_CoreUObject!ResolveName() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:696]
UE4Editor_CoreUObject!StaticLoadObjectInternal() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:783]
UE4Editor_CoreUObject!StaticLoadObject() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:853]
UE4Editor_UMG!ConstructorHelpersInternal::FindOrLoadObject<UMaterialInterface>() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\public\uobject\constructorhelpers.h:31]
UE4Editor_UMG!UWidgetComponent::UWidgetComponent() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\umg\private\components\widgetcomponent.cpp:462]
UE4Editor_CoreUObject!UClass::CreateDefaultObject() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:3340]
UE4Editor_CoreUObject!UObjectLoadAllCompiledInDefaultProperties() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectbase.cpp:725]
UE4Editor_CoreUObject!ProcessNewlyLoadedUObjects() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectbase.cpp:819]
UE4Editor!FEngineLoop::PreInit() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:1503]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launch.cpp:114]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll