Unreal engine started crashing

[JohnGiotto]

Hello,
my unreal engine started to crash on launch today, yesterday worked without any problem.

I’m on macOS Sonoma 14.5
4k- 27" 2020
Unreal engine version 5.3.2

I would be happy for any help In need it to start to run soon as possible.

thank you for your help!

this is what I getting:

Fatal error: [File:./Runtime/Engine/Private/Materials/MaterialShared.cpp] [Line: 2872] Failed to compile default material WorldGridMaterial!

UE::Core::Private::Function::TFunctionRefCaller<FMaterial::BeginCacheShaders(FMaterialShaderMapId const&, EShaderPlatform, EMaterialShaderPrecompileMode, ITargetPlatform const*, TUniqueFunction<void (bool)>&&)::$_78, bool ()>::Call(void*) Address = 0x1237ca5bc (filename not found) [in UnrealEditor-Engine.dylib]
FMaterial::FinishCacheShaders() const Address = 0x123750408 (filename not found) [in UnrealEditor-Engine.dylib]
FMaterial::CacheShaders(FMaterialShaderMapId const&, EShaderPlatform, EMaterialShaderPrecompileMode, ITargetPlatform const*) Address = 0x12375dcee (filename not found) [in UnrealEditor-Engine.dylib]
FMaterial::CacheShaders(EShaderPlatform, EMaterialShaderPrecompileMode, ITargetPlatform const*) Address = 0x1237032c7 (filename not found) [in UnrealEditor-Engine.dylib]
UMaterial::CacheResourceShadersForRendering(bool, EMaterialShaderPrecompileMode) Address = 0x1235b983e (filename not found) [in UnrealEditor-Engine.dylib]
UMaterial::PostLoad() Address = 0x1235c6f8d (filename not found) [in UnrealEditor-Engine.dylib]
UObject::ConditionalPostLoad() Address = 0x10f6f1aab (filename not found) [in UnrealEditor-CoreUObject.dylib]
UMaterialInterface::PostLoadDefaultMaterials() Address = 0x1235b1f49 (filename not found) [in UnrealEditor-Engine.dylib]
UMaterialInterface::PostLoad() Address = 0x123708560 (filename not found) [in UnrealEditor-Engine.dylib]
UMaterial::PostLoad() Address = 0x1235c4ec8 (filename not found) [in UnrealEditor-Engine.dylib]
UObject::ConditionalPostLoad() Address = 0x10f6f1aab (filename not found) [in UnrealEditor-CoreUObject.dylib]
EndLoad(FUObjectSerializeContext*, TArray<UPackage*, TSizedDefaultAllocator<32>>) Address = 0x10f89b1d3 (filename not found) [in UnrealEditor-CoreUObject.dylib]
LoadPackageInternal(UPackage, FPackagePath const&, unsigned int, FLinkerLoad*, FArchive*, FLinkerInstancingContext const*, FPackagePath const*) Address = 0x10f89943b (filename not found) [in UnrealEditor-CoreUObject.dylib]
LoadPackage(UPackage*, FPackagePath const&, unsigned int, FArchive*, FLinkerInstancingContext const*, FPackagePath const*) Address = 0x10f89ccd4 (filename not found) [in UnrealEditor-CoreUObject.dylib]
LoadPackage(UPackage*, char16_t const*, unsigned int, FArchive*, FLinkerInstancingContext const*) Address = 0x10f896568 (filename not found) [in UnrealEditor-CoreUObject.dylib]
ResolveName(UObject*&, FString&, bool, bool, unsigned int, FLinkerInstancingContext const*) Address = 0x10f892db5 (filename not found) [in UnrealEditor-CoreUObject.dylib]
StaticLoadObjectInternal(UClass*, UObject*, char16_t const*, char16_t const*, unsigned int, UPackageMap*, bool, FLinkerInstancingContext const*) Address = 0x10f896c53 (filename not found) [in UnrealEditor-CoreUObject.dylib]
StaticLoadObject(UClass*, UObject*, char16_t const*, char16_t const*, unsigned int, UPackageMap*, bool, FLinkerInstancingContext const*) Address = 0x10f86c91a (filename not found) [in UnrealEditor-CoreUObject.dylib]
UStaticMesh* ConstructorHelpersInternal::FindOrLoadObject(FString&, unsigned int) Address = 0x122931f25 (filename not found) [in UnrealEditor-Engine.dylib]
ConstructorHelpers::FObjectFinder::FObjectFinder(char16_t const*, unsigned int) Address = 0x122931d19 (filename not found) [in UnrealEditor-Engine.dylib]
UPlanarReflectionComponent::UPlanarReflectionComponent(FObjectInitializer const&) Address = 0x122c47470 (filename not found) [in UnrealEditor-Engine.dylib]
UClass::CreateDefaultObject() Address = 0x10f4ca535 (filename not found) [in UnrealEditor-CoreUObject.dylib]
UClass::InternalCreateDefaultObjectWrapper() const Address = 0x10f4cfce1 (filename not found) [in UnrealEditor-CoreUObject.dylib]
FObjectInitializer::CreateDefaultSubobject(UObject*, FName, UClass const*, UClass const*, bool, bool) const Address = 0x10f8af927 (filename not found) [in UnrealEditor-CoreUObject.dylib]
UObject::CreateDefaultSubobject(FName, UClass*, UClass*, bool, bool) Address = 0x10f6e92a2 (filename not found) [in UnrealEditor-CoreUObject.dylib]
APlanarReflection::APlanarReflection(FObjectInitializer const&) Address = 0x122c46b10 (filename not found) [in UnrealEditor-Engine.dylib]
UClass::CreateDefaultObject() Address = 0x10f4ca535 (filename not found) [in UnrealEditor-CoreUObject.dylib]
UClass::InternalCreateDefaultObjectWrapper() const Address = 0x10f4cfce1 (filename not found) [in UnrealEditor-CoreUObject.dylib]
ProcessNewlyLoadedUObjects(FName, bool) Address = 0x10f880318 (filename not found) [in UnrealEditor-CoreUObject.dylib]
FEngineLoop::PreInitPostStartupScreen(char16_t const*) Address = 0x10d171563 (filename not found) [in UnrealEditor]
GuardedMain(char16_t const*) Address = 0x10d15e9f6 (filename not found) [in UnrealEditor]
-[UEAppDelegate runGameThread:] Address = 0x10d17b815 (filename not found) [in UnrealEditor]
-[FCocoaGameThread main] Address = 0x1112c9374 (filename not found) [in UnrealEditor-Core.dylib]
Unknown() Address = 0x7ff802c9fd9c (filename not found) [in Foundation]
_pthread_start Address = 0x7ff801c1a18b (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7ff801c15ae3 (filename not found) [in libsystem_pthread.dylib]

[Leomerya12]

@JohnGiotto

Failed to compile default material WorldGridMaterial

You may need to reinstall/verify Unreal Engine. Unsure though.

More reading:

Failed to compile default material /Engine/EngineMaterials/WorldGridMaterial.WorldGridMaterial!

I found a solution that worked for me. All I had to do was run the “Fix Up Redirectors in Folder” function on my entire “Content” Folder. Hopefully this helps someone else. I’m not exactly sure what created my “Fatal Error” to begin with though. It could be that I edited the project name outside of the editor, edited a file name outside of the editor, or deleted a project file outside of the editor. [28a6fd6fa6f4b67f34519e3f51565f24ec476929]

[FrostyJas]

Greetings @JohnGiotto

Welcome to the Unreal Engine Community Forum. The information and link Leo provided is definitely a good place to start. I’d also recommend checking out === Critical error: === Failed to compile default material /Engine/EngineMaterials/WorldGridMaterial.WorldGridMaterial! if you’re unable to resolve it from Leo’s link. There a few things to try on there that users have had success with as well. Let me know if after both suggestions you’re still running into the problem. Thanks!

[JohnGiotto]

Hello, thank you for your tips, I ended up downloading 5.4 and it launched so I left problem in 5.3.