# UE5 crash and unable to open file **URL:** \ **Category:** Feedback & Requests\ **Tags:** unreal-engine, crash, UE5-0, question\ **Created:** [May 13, 2022, 3:30pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500 "2022-05-13T15:30:33Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![CharlieM92911](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CharlieM92911](https://forums.unrealengine.com/u/CharlieM92911)\ **Post date:** [May 13, 2022, 3:30pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/1 "2022-05-13T15:30:33Z")
Hey all! I was setting up my file to be packaged for Oculus Quest and I kept having a greyed out “VR preview” and in a forum it said to enable “instanced stereo”. Once I did that it had me restart but now I am unable to open my project without crashing. Any ideas how to fix this and or to change that setting? I am hoping I didn’t fully lose the project…thank you for any help! Here is what the crash report says: Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\RHI\Private\PipelineStateCache.cpp] [Line: 144] Shader compilation failures are Fatal. ---
**Author:** ![L1z4rD89](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/l1z4rd89/32/1194537_2.png) [@L1z4rD89](https://forums.unrealengine.com/u/L1z4rD89)\ **Post date:** [May 13, 2022, 5:55pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/2 "2022-05-13T17:55:43Z")
You can go into your config folder inside the project and in the DefaultEngine.ini change / remove the InstancedStereo setting and save the \*.ini file. Delete this line “vr.InstancedStereo=True” €dit: I remember that there was a problem with instanced stereo and something else which creates crashes when using materials. Have a look for it in the forum. ---
**Author:** ![CharlieM92911](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CharlieM92911](https://forums.unrealengine.com/u/CharlieM92911)\ **Post date:** [May 19, 2022, 11:29pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/3 "2022-05-19T23:29:06Z")
THANK YOU - this fixed it ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 28, 2022, 12:46pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/4 "2022-09-28T12:46:18Z")
How do I fix this on a Mac? Fatal error: [File:/Users/build/Build/++UE5/Sync/Engine/Source/Runtime/RHI/Private/PipelineStateCache.cpp] [Line: 144] Shader compilation failures are Fatal. I don’t have the DefaultGameEngine.ini file. ---
**Author:** ![L1z4rD89](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/l1z4rd89/32/1194537_2.png) [@L1z4rD89](https://forums.unrealengine.com/u/L1z4rD89)\ **Post date:** [September 28, 2022, 2:30pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/5 "2022-09-28T14:30:06Z")
Hey @Yo_Ung_Ming1 , when you create a project it will create different folders inside this project folder. When you go to your project (inside your explorer, not Unreal) which folders are there? Do you have a Config folder? ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 28, 2022, 3:02pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/6 "2022-09-28T15:02:20Z")
Yes, a folder with: DefaultEditor.ini DefaultEditorPerProjectUserSettings.ini DefaultEngine.ini DefaultGame.ini DefaultInput.ini ---
**Author:** ![L1z4rD89](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/l1z4rd89/32/1194537_2.png) [@L1z4rD89](https://forums.unrealengine.com/u/L1z4rD89)\ **Post date:** [September 28, 2022, 3:15pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/7 "2022-09-28T15:15:31Z")
Oh, now I see it: DefaultEngine.ini, inside this file there is “vr.InstancedStereo=True” ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 28, 2022, 3:20pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/8 "2022-09-28T15:20:21Z")
Yes, I deleted it and saved it. But nothing changes. I still got the following: LoginId:b399d182ad4b97b7bacefe84a69db8e0 EpicAccountId:e6c9d8e0d350490690f5ab0f50105fba Fatal error: [File:/Users/build/Build/++UE5/Sync/Engine/Source/Runtime/RHI/Private/PipelineStateCache.cpp] [Line: 144] Shader compilation failures are Fatal. FCompilePipelineStateTask::DoTask(ENamedThreads::Type, TRefCountPtr const&) Address = 0x1018f365d (filename not found) [in UnrealEditor-RHI.dylib] TGraphTask::ExecuteTask(TArray\ \>&, ENamedThreads::Type, bool) Address = 0x1018f2eec (filename not found) [in UnrealEditor-RHI.dylib] FTaskGraphCompatibilityImplementation::QueueTask(FBaseGraphTask\*, bool, ENamedThreads::Type, ENamedThreads::Type)::‘lambda’()::operator()() const Address = 0x102dff128 (filename not found) [in UnrealEditor-Core.dylib] LowLevelTasks::TTaskDelegate\::TTaskDelegateImpl\(char16\_t const\*, LowLevelTasks::ETaskPriority, FTaskGraphCompatibilityImplementation::QueueTask(FBaseGraphTask\*, bool, ENamedThreads::Type, ENamedThreads::Type)::‘lambda’()&&, bool)::‘lambda’(bool), false\>::CallAndMove(LowLevelTasks::TTaskDelegate\&, void\*, unsigned int, bool) Address = 0x102dfeba7 (filename not found) [in UnrealEditor-Core.dylib] bool LowLevelTasks::FScheduler::TryExecuteTaskFrom\<&(LowLevelTasks::TLocalQueueRegistry\<1024u\>::TLocalQueue::DequeueGlobal(bool, bool)), false\>(LowLevelTasks::TLocalQueueRegistry\<1024u\>::TLocalQueue\*, LowLevelTasks::TLocalQueueRegistry\<1024u\>::FOutOfWork&, bool, bool) Address = 0x102dd50ff (filename not found) [in UnrealEditor-Core.dylib] LowLevelTasks::FScheduler::WorkerMain(LowLevelTasks::FSleepEvent\*, LowLevelTasks::TLocalQueueRegistry\<1024u\>::TLocalQueue\*, unsigned int, bool) Address = 0x102dd45f1 (filename not found) [in UnrealEditor-Core.dylib] FThreadImpl::Run() Address = 0x102fbd023 (filename not found) [in UnrealEditor-Core.dylib] FRunnableThreadPThread::Run() Address = 0x102f7fdb4 (filename not found) [in UnrealEditor-Core.dylib] FRunnableThreadPThread::\_ThreadProc(void\*) Address = 0x102ee01b4 (filename not found) [in UnrealEditor-Core.dylib] \_pthread\_start Address = 0x7ff80a6ad259 (filename not found) [in libsystem\_pthread.dylib] thread\_start Address = 0x7ff80a6a8c7b (filename not found) [in libsystem\_pthread.dylib] ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 28, 2022, 3:23pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/9 "2022-09-28T15:23:58Z")
I also found it here and deleted it: ![Scherm­afbeelding 2022-09-28 om 17.22.50](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/c/8/bc81f0f6eed8d0e4cd4228c4007e58fe904d38f6.jpeg) ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 28, 2022, 3:41pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/10 "2022-09-28T15:41:10Z")
Now I have an other error: LoginId:b399d182ad4b97b7bacefe84a69db8e0 EpicAccountId:e6c9d8e0d350490690f5ab0f50105fba Assertion failed: Pair != nullptr [File:/Users/build/Build/++UE5/Sync/Engine/Source/Runtime/Core/Public/Containers/Map.h] [Line: 656] FConfigCacheIni::ForPlatform(FName) Address = 0x10b4ac8f7 (filename not found) [in UnrealEditor-Core.dylib] Scalability::SetGroupQualityLevel(char16\_t const\*, int, int) Address = 0x1178dfbfd (filename not found) [in UnrealEditor-Engine.dylib] TBaseStaticDelegateInstance\::ExecuteIfSafe(IConsoleVariable\*) const Address = 0x1162b573d (filename not found) [in UnrealEditor-Engine.dylib] TMulticastDelegate\::Broadcast(IConsoleVariable\*) const Address = 0x10b24bd74 (filename not found) [in UnrealEditor-Core.dylib] FConsoleVariable::Set(char16\_t const\*, EConsoleVariableFlags) Address = 0x10b25d781 (filename not found) [in UnrealEditor-Core.dylib] IConsoleVariable::Set(int, EConsoleVariableFlags) Address = 0x1162e28e7 (filename not found) [in UnrealEditor-Engine.dylib] Scalability::SetQualityLevels(Scalability::FQualityLevels const&, bool) Address = 0x1178e16bb (filename not found) [in UnrealEditor-Engine.dylib] UEditorSettings::AutoApplyScalabilityBenchmark() Address = 0x11f446f4a (filename not found) [in UnrealEditor-UnrealEd.dylib] SScalabilitySettings::OnAutoClicked() Address = 0x11f50b0b6 (filename not found) [in UnrealEditor-UnrealEd.dylib] TBaseSPMethodDelegateInstance\::Execute() const Address = 0x11f59c0fd (filename not found) [in UnrealEditor-UnrealEd.dylib] SButton::ExecuteOnClick() Address = 0x10e853a25 (filename not found) [in UnrealEditor-Slate.dylib] SButton::OnMouseButtonUp(FGeometry const&, FPointerEvent const&) Address = 0x10e875774 (filename not found) [in UnrealEditor-Slate.dylib] FSlateApplication::RoutePointerUpEvent(FWidgetPath const&, FPointerEvent const&) Address = 0x10e64148a (filename not found) [in UnrealEditor-Slate.dylib] FSlateApplication::ProcessMouseButtonUpEvent(FPointerEvent const&) Address = 0x10e5fd67b (filename not found) [in UnrealEditor-Slate.dylib] FSlateApplication::OnMouseUp(EMouseButtons::Type, UE::Math::TVector2) Address = 0x10e64b1f6 (filename not found) [in UnrealEditor-Slate.dylib] FMacApplication::ProcessMouseUpEvent(FDeferredMacEvent const&, TSharedPtr\) Address = 0x109a6304a (filename not found) [in UnrealEditor-ApplicationCore.dylib] FMacApplication::ProcessEvent(FDeferredMacEvent const&) Address = 0x109a5d2fc (filename not found) [in UnrealEditor-ApplicationCore.dylib] FMacApplication::ProcessDeferredEvents(float) Address = 0x109a5d07f (filename not found) [in UnrealEditor-ApplicationCore.dylib] FSlateApplication::TickPlatform(float) Address = 0x10e6169c7 (filename not found) [in UnrealEditor-Slate.dylib] FSlateApplication::Tick(ESlateTickType) Address = 0x10e615f15 (filename not found) [in UnrealEditor-Slate.dylib] FEngineLoop::Tick() Address = 0x1091c3bba (filename not found) [in UnrealEditor] GuardedMain(char16\_t const\*) Address = 0x1091d0992 (filename not found) [in UnrealEditor] -[UEAppDelegate runGameThread:] Address = 0x1091ec033 (filename not found) [in UnrealEditor] -[FCocoaGameThread main] Address = 0x10b3d4561 (filename not found) [in UnrealEditor-Core.dylib] Unknown() Address = 0x7ff80b5d6adc (filename not found) [in Foundation] \_pthread\_start Address = 0x7ff80a6ad259 (filename not found) [in libsystem\_pthread.dylib] thread\_start Address = 0x7ff80a6a8c7b (filename not found) [in libsystem\_pthread.dylib] ---
**Author:** ![L1z4rD89](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/l1z4rd89/32/1194537_2.png) [@L1z4rD89](https://forums.unrealengine.com/u/L1z4rD89)\ **Post date:** [September 28, 2022, 9:17pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/11 "2022-09-28T21:17:31Z")
Copy your project folder, delete everything except CONFIG, CONTENT and your \*.UPROJECT file. Then try again. Alternative: 1. Upload your project 2. Tell us what you changed in your project or it is a new one. ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 29, 2022, 6:11am UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/12 "2022-09-29T06:11:48Z")
It’s a new one, nothing changed. I completely reinstalled UE 5.0.3 and the Quixel Bridge plugin. In the settings “privacy and security” I needed to allow Macos to open node.bifrost.app My project shuts down when I am using my mouse to navigate in the viewport. The error: Fatal error: [File:/Users/build/Build/++UE5/Sync/Engine/Source/Runtime/RHI/Private/PipelineStateCache.cpp] [Line: 144] Shader compilation failures are Fatal. FCompilePipelineStateTask::DoTask(ENamedThreads::Type, TRefCountPtr const&) Address = 0x10790365d (filename not found) [in UnrealEditor-RHI.dylib] TGraphTask::ExecuteTask(TArray\ \>&, ENamedThreads::Type, bool) Address = 0x107902eec (filename not found) [in UnrealEditor-RHI.dylib] FTaskGraphCompatibilityImplementation::QueueTask(FBaseGraphTask\*, bool, ENamedThreads::Type, ENamedThreads::Type)::‘lambda’()::operator()() const Address = 0x108e0f128 (filename not found) [in UnrealEditor-Core.dylib] LowLevelTasks::TTaskDelegate\::TTaskDelegateImpl\(char16\_t const\*, LowLevelTasks::ETaskPriority, FTaskGraphCompatibilityImplementation::QueueTask(FBaseGraphTask\*, bool, ENamedThreads::Type, ENamedThreads::Type)::‘lambda’()&&, bool)::‘lambda’(bool), false\>::CallAndMove(LowLevelTasks::TTaskDelegate\&, void\*, unsigned int, bool) Address = 0x108e0eba7 (filename not found) [in UnrealEditor-Core.dylib] bool LowLevelTasks::FScheduler::TryExecuteTaskFrom\<&(LowLevelTasks::TLocalQueueRegistry\<1024u\>::TLocalQueue::DequeueGlobal(bool, bool)), false\>(LowLevelTasks::TLocalQueueRegistry\<1024u\>::TLocalQueue\*, LowLevelTasks::TLocalQueueRegistry\<1024u\>::FOutOfWork&, bool, bool) Address = 0x108de50ff (filename not found) [in UnrealEditor-Core.dylib] LowLevelTasks::FScheduler::WorkerMain(LowLevelTasks::FSleepEvent\*, LowLevelTasks::TLocalQueueRegistry\<1024u\>::TLocalQueue\*, unsigned int, bool) Address = 0x108de45f1 (filename not found) [in UnrealEditor-Core.dylib] FThreadImpl::Run() Address = 0x108fcd023 (filename not found) [in UnrealEditor-Core.dylib] FRunnableThreadPThread::Run() Address = 0x108f8fdb4 (filename not found) [in UnrealEditor-Core.dylib] FRunnableThreadPThread::\_ThreadProc(void\*) Address = 0x108ef01b4 (filename not found) [in UnrealEditor-Core.dylib] \_pthread\_start Address = 0x7ff81ae28259 (filename not found) [in libsystem\_pthread.dylib] thread\_start Address = 0x7ff81ae23c7b (filename not found) [in libsystem\_pthread.dylib] ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 29, 2022, 6:42am UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/13 "2022-09-29T06:42:17Z")
> **[CastleAssets.zip](https://wetransfer.com/downloads/9773e5153609985dd95e04784ba2703620220929063248/56d41e)** > > 1 file sent via WeTransfer, the simplest way to send your files around the world ---
**Author:** ![L1z4rD89](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/l1z4rd89/32/1194537_2.png) [@L1z4rD89](https://forums.unrealengine.com/u/L1z4rD89)\ **Post date:** [September 29, 2022, 3:58pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/14 "2022-09-29T15:58:48Z")
Can you create a new folder, paste these files inside it and test it? > **[CastleAssets.zip](https://drive.google.com/file/d/1eHBky02ccCHR7IKOlNo8QZC1Esnq1TYX/view?usp=sharing)** > > Google Drive file. That is your project with all settings reset, no plugin, no project settings (except your input) ---
**Author:** ![Yo\_Ung\_Ming1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Yo\_Ung\_Ming1](https://forums.unrealengine.com/u/Yo_Ung_Ming1)\ **Post date:** [September 30, 2022, 12:59pm UTC](https://forums.unrealengine.com/t/ue5-crash-and-unable-to-open-file/556500/15 "2022-09-30T12:59:17Z")
I reinstalled Monterey, Epic Games Launcher, UE5 + bridge and Xcode.\*\* Now it seems to work all correctly. So I don’t know if your adjustments are OK. Thanks anyway!