5.7.0 MacOS SM5 - development package crash after streaming data in (both spatial and explicit load of data layer) (unstable)

hummyuid · November 28, 2025, 7:32pm

log follows:

…
LogOutputDevice: Warning:

Script Stack (0 frames) :

2025-11-28 22:18:47.397 one[2358:60576] [UE] Assertion failed: ComponentsToUpdate.IsValidIndex(ArrayIndex) [File:./Runtime/Engine/Private/LevelTick.cpp] [Line: 986]

LogMac: Error: appError called: Assertion failed: ComponentsToUpdate.IsValidIndex(ArrayIndex) [File:./Runtime/Engine/Private/LevelTick.cpp] [Line: 986]

LogAudioMixer: Display: Audio Buffer Underrun (starvation) detected. InstanceID=1
2025-11-28 22:18:48.398 one[2358:60576] [UE] Additional Crash Context (Key=“Breadcrumbs_Parallel_0”, Value="Breadcrumbs ‘Parallel’

Translucency
Scene
RenderGraphExecute - /ViewFamilies
SceneRender - ViewFamilies
Frame 63931
")
LogRHI: Error: Breadcrumbs ‘Parallel’
Translucency
Scene
RenderGraphExecute - /ViewFamilies
SceneRender - ViewFamilies
Frame 63931

2025-11-28 22:18:48.399 one[2358:60576] [UE] Additional Crash Context (Key=“Breadcrumbs_Parallel_1”, Value="Breadcrumbs ‘Parallel’

TextureDownsampleChain
PostProcessing
Scene
RenderGraphExecute - /ViewFamilies
SceneRender - ViewFamilies
Frame 63931
")
LogRHI: Error: Breadcrumbs ‘Parallel’
TextureDownsampleChain
PostProcessing
Scene
RenderGraphExecute - /ViewFamilies
SceneRender - ViewFamilies
Frame 63931

LogPakFile: Display: Found Pak file ../../../Engine/Programs/CrashReportClient/Content/Paks/CrashReportClient.pak attempting to mount.
LogPakFile: Display: Mounting pak file ../../../Engine/Programs/CrashReportClient/Content/Paks/CrashReportClient.pak.
LogPakFile: Display: Mounted Pak file ‘../../../Engine/Programs/CrashReportClient/Content/Paks/CrashReportClient.pak’, mount point: ‘../../../Engine/’
LogPaths: Warning: No paths for game localization data were specifed in the game configuration.
LogInit: Warning: No paths for engine localization data were specifed in the engine configuration.
CrashReportCoreLog: Display: Applying project settings from ‘/Users/hummy/Library/Containers/com.YourCompany.one/Data/Library/Application Support/Epic/UnrealEngine/5.7/Saved/Crashes/CrashReport-UE-one-pid-2358-A1CA5DD46A4689458AF53D8070E1261B/CrashReportClient.ini’.
UNSUPPORTED (log once): POSSIBLE ISSUE: unit 0 GLD_TEXTURE_INDEX_RECTANGLE is unloadable and bound to sampler type (Float) - using zero texture because texture unloadable

hummyuid · November 29, 2025, 1:06pm

What’s worse about 5.7.0, it tends to hang WindowServer dead in Tahoe, both vanilla editor and dev package, which wasn’t there in 5.6.* and was previously observed only in early versions of UE5

hummyuid · December 1, 2025, 10:08pm

besides that, looks like random mips of random streaming textures get corrupted (unstable)

hummyuid · December 2, 2025, 5:13pm

shader compiler crashes compiling content from matrix awakens demo with virtual textures support enabled in project (5.7.0, 5.7.1)

UATHelper: Cooking (Mac): 2025-12-02 20:02:51.672 UnrealEditor[69367:4772973] [UE] Assertion failed: TextureIndices [File:./Developer/Apple/MetalShaderFormat/Private/MetalCompileShaderSPIRV.cpp] [Line: 796]
UATHelper: Cooking (Mac):
UATHelper: Error: Cooking (Mac): LogMac: Error: appError called: Assertion failed: TextureIndices [File:./Developer/Apple/MetalShaderFormat/Private/MetalCompileShaderSPIRV.cpp] [Line: 796]
UATHelper: Cooking (Mac):
UATHelper: Cooking (Mac):
UATHelper: Cooking (Mac): 2025-12-02 20:02:53.764 UnrealEditor[69367:4772973] [UE] Additional Crash Context (Key=“ActivePackage”, Value=“/Game/MetaHumans/Common/Face/Textures/Utilities/AnimMasks/T_head_wm2_msk_03”)
UATHelper: Cooking (Mac): LogAnalytics: Display: [CrashReporter.Release] AnalyticsET::StartSession ( APIServer = https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data. AppVersion = ++UE5+Release-5.7-CL-48512491 )
UATHelper: Cooking (Mac): CrashReportCoreLog: Display: Applying project settings from ‘/Users/hummy/Library/Application Support/Epic/UnrealEngine/5.7/Saved/Crashes/CrashReport-UE-one-pid-69367-DDF7C947C1416058628EC0854890A146/CrashReportClient.ini’.
UATHelper: Cooking (Mac): 2025-12-02 20:02:54.995 CrashReportClientEditor[70161:4792565] [UE] Ensure condition failed: false [File:./Developer/CrashDebugHelper/Private/Mac/CrashDebugHelperMac.cpp] [Line: 296]
UATHelper: Cooking (Mac):
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: === Handled ensure: ===
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error:
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: Ensure condition failed: false [File:./Developer/CrashDebugHelper/Private/Mac/CrashDebugHelperMac.cpp] [Line: 296]
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error:
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: Stack:
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x00e0bd14 CrashReportClientEditor!_ZN20FCrashDebugHelperMac30CreateMinidumpDiagnosticReportERK7FString [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x00e1b034 CrashReportClientEditor!_ZNK15FMacErrorReport14DiagnoseReportEv [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x00e1a6d4 CrashReportClientEditor!_ZN26FCrashReportCoreUnattendedC2ER15FMacErrorReportb [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x0138602c CrashReportClientEditor!_Z13RunUnattended15FMacErrorReportb [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x01387024 CrashReportClientEditor!Z15SendErrorReportR15FMacErrorReport9TOptionalIbES2 [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x013880e0 CrashReportClientEditor!_Z20RunCrashReportClientPKDs [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x0138c624 CrashReportClientEditor!-[UEAppDelegate runGameThread:] [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x0094398c CrashReportClientEditor!-[FCocoaGameThread main] [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x85cc97a0 Foundation!NSThread__start [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x84419c08 libsystem_pthread.dylib!_pthread_start [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error: [Callstack] 0x84414ba8 libsystem_pthread.dylib!thread_start [UnknownFile])
UATHelper: Error: Cooking (Mac): LogOutputDevice: Error:
UATHelper: Cooking (Mac): LogAnalytics: Display: [CrashReporter.Release] AnalyticsET::EndSession
UATHelper: Cooking (Mac): Took 321,18s to run UnrealEditor, ExitCode=1
UATHelper: Error: Cooking (Mac): Cook failed.

hummyuid · December 3, 2025, 10:27am

random landscape sections get displaced upwards as camera approaches (since 5.7.0, 5.7.1, unstable)

hummyuid · December 4, 2025, 10:36pm

Texture corruption as well as landscape corruption happens even with streaming turned off if that helps anyone…

hummyuid · December 9, 2025, 2:16am

Since 5.7.0, 5.7.1 - simple camera movement in editor (and packaged build too) kills WindowServer, particularly often observable in mesh LOD coloration view mode

hummyuid · December 11, 2025, 12:16am

I managed to reproduce an RHI crash that visually looked exactly like the one that lead to death of WindowServer but this time WindowServer survived and I got something in log which might be relevant

LogOutputDevice: Warning:

Script Stack (0 frames) :

2025-12-11 03:06:26.559 one[2628:43039] [UE] Ensure condition failed: Binding.Length >= MinFragmentBufferSizes[Index] [File:./Runtime/Apple/MetalRHI/Private/MetalStateCache.cpp] [Line: 2570]

LogOutputDevice: Error: === Handled ensure: ===
LogOutputDevice: Error:
LogOutputDevice: Error: Ensure condition failed: Binding.Length >= MinFragmentBufferSizes[Index] [File:./Runtime/Apple/MetalRHI/Private/MetalStateCache.cpp] [Line: 2570]
LogOutputDevice: Error:
LogOutputDevice: Error: Stack:
LogOutputDevice: Error: [Callstack] 0x07eaf800 one!FMetalStateCache::SetRenderPipelineState(FMetalCommandEncoder&) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x07e622b0 one!FMetalRHICommandContext::PrepareToRender(unsigned int) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x07e63e3c one!FMetalRHICommandContext::RHIDrawIndexedPrimitive(FRHIBuffer*, int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x0270a538 one!FRHICommand<FRHICommandDrawIndexedPrimitive, FRHICommandDrawIndexedPrimitiveString1841>::ExecuteAndDestruct(FRHICommandListBase&) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x02656bf8 one!FRHICommandListBase::Execute() [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x02659578 one!FRHICommandListExecutor::FTranslateState::Translate(FRHICommandListBase*) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x0268e900 one!UE::Core::Private::Function::TFunctionRefCaller<FRHICommandListExecutor::FSubmitState::Dispatch(FRHICommandListBase*)::$_0, void>::Call(void*) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x02657730 one!FRHICommandListExecutor::FTaskPipe::Execute(FRHICommandListExecutor::FTaskPipe::FTask*, TRefCountPtr const&) const [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x011ee5f8 one!TGraphTask<TFunctionGraphTaskImpl<void (ENamedThreads::Type, TRefCountPtr const&), (ESubsequentsMode::Type)0>>::ExecuteTask() [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00b95c7c one!UE::Tasks::Private::FTaskBase::TryExecuteTask() [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00b98a70 one!LowLevelTasks::TTaskDelegate<LowLevelTasks::FTask* (bool), 112u>::TTaskDelegateImpl<void LowLevelTasks::FTask::Init<UE::Tasks::Private::FTaskBase::Init(char16_t const*, LowLevelTasks::ETaskPriority, UE::Tasks::EExtendedTaskPriority, UE::Tasks::ETaskFlags)::‘lambda’()>(char16_t const*, LowLevelTasks::ETaskPriority, UE::Tasks::Private::FTaskBase::Init(char16_t const*, LowLevelTasks::ETaskPriority, UE::Tasks::EExtendedTaskPriority, UE::Tasks::ETaskFlags)::‘lambda’()&&, LowLevelTasks::ETaskFlags)::‘lambda’(bool), false>::CallAndMove(LowLevelTasks::TTaskDelegate<LowLevelTasks::FTask* (bool), 112u>&, void*, unsigned int, bool) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00b91634 one!LowLevelTasks::FTask::ExecuteTask() [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00b727e4 one!LowLevelTasks::FScheduler::ExecuteTask(LowLevelTasks::FTask*) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00b7449c one!LowLevelTasks::FScheduler::WorkerLoop(LowLevelTasks::Private::FWaitEvent*, LowLevelTasks::Private::TLocalQueueRegistry<1024u, 1024u>::TLocalQueue*, unsigned int, bool) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00b74de8 one!LowLevelTasks::FScheduler::WorkerMain(LowLevelTasks::Private::FWaitEvent*, LowLevelTasks::Private::TLocalQueueRegistry<1024u, 1024u>::TLocalQueue*, unsigned int, bool) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00e0bbf8 one!FThreadImpl::Run() [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00dccd38 one!FRunnableThreadPThread::Run() [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x00d46430 one!FRunnableThreadPThread::_ThreadProc(void*) [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x9e8b5c08 libsystem_pthread.dylib!_pthread_start() [UnknownFile])
LogOutputDevice: Error: [Callstack] 0x9e8b0ba8 libsystem_pthread.dylib!thread_start() [UnknownFile])
LogOutputDevice: Error:
2025-12-11 03:06:27.387 one[2628:43039] [UE] Additional Crash Context (Key=“Breadcrumbs_Parallel_0”, Value="Breadcrumbs ‘Parallel’

ParallelDraw (Index: 2, Num: 4)
BasePass
Scene
RenderGraphExecute - /ViewFamilies
SceneRender - ViewFamilies
Frame 36808
")
LogRHI: Error: Breadcrumbs ‘Parallel’
ParallelDraw (Index: 2, Num: 4)
BasePass
Scene
RenderGraphExecute - /ViewFamilies
SceneRender - ViewFamilies
Frame 36808

hummyuid · December 21, 2025, 8:39pm

Unreal editor 5.7.1 just survived 6 hours of of level building with landscape made invisible and deallocked WindowServer five minutes after landscape was shown

hummyuid · December 30, 2025, 12:51pm

Okay what I did was recreating layerinfos for my landscape and I guess I can address at least some of the GPU crashes to that.

My case: there was a large landscape that I decided to optimize one day, which I did using landscape management (keeping its overall size but reducing the number of section) - turns out you have to recreate layerinfos after that which isn’t obvious enough, guys

Loaded mesh corruption persist though (even for non spatially loaded meshes within data layers)

Shouldn’t there be something like a size or checksum assertion validation for loading assets? I saw an Epic video that assumes there is, but I get nothing like that when I get that memory (?) corruption. Is there an epic way for that?

hummyuid · January 11, 2026, 2:26am

Stable crash during metahuman assembly

LoginId:58cdd3c33548e2330b96c19adea4ab8d
EpicAccountId:3dfc67327ab949b48a56edd5be5c678e

Assertion failed: !IsRooted() [File:Runtime/CoreUObject/Public/UObject/UObjectBaseUtility.h] [Line: 184]

0x06630c04 UnrealEditor-Core.dylib!FDebug::CheckVerifyFailedImpl2(char const*, char const*, int, char16_t const*, …) [UnknownFile])
0x232c6a38 UnrealEditor-MetaHumanCharacterEditor.dylib!UObjectBaseUtility::MarkAsGarbage() [UnknownFile])
0x2330ca98 UnrealEditor-MetaHumanCharacterEditor.dylib!FMetaHumanCharacterEditorBuild::DeleteMaterialInstanceChildren(TNotNull<UMaterialInterface*>) [UnknownFile])
0x2330bb14 UnrealEditor-MetaHumanCharacterEditor.dylib!FMetaHumanCharacterEditorBuild::DuplicateDepedenciesToNewRoot(TSet<UObject*, DefaultKeyFuncs<UObject*, false>, FDefaultSetAllocator> const&, FString const&, TSet<UObject*, DefaultKeyFuncs<UObject*, false>, FDefaultSetAllocator>&, TMap<UObject*, UObject*, FDefaultSetAllocator, TDefaultMapHashableKeyFuncs<UObject*, UObject*, false>>&, TFunction<bool (UObject const*)>) [UnknownFile])
0x23350dc8 UnrealEditor-MetaHumanCharacterEditor.dylib!decltype(auto) UE::Core::Private::Tuple::TTupleBase::ApplyAfter<FMetaHumanCharacterEditorBuild::BuildMetaHumanCharacter(TNotNull<UMetaHumanCharacter*>, FMetaHumanCharacterEditorBuildParameters const&)::$_0::operator()(EMetaHumanCharacterAssetsUnpackResult) const::‘lambda’()&>(FMetaHumanCharacterEditorBuild::BuildMetaHumanCharacter(TNotNull<UMetaHumanCharacter*>, FMetaHumanCharacterEditorBuildParameters const&)::$_0::operator()(EMetaHumanCharacterAssetsUnpackResult) const::‘lambda’()&) const & [UnknownFile])
0x23350298 UnrealEditor-MetaHumanCharacterEditor.dylib!TBaseFunctorDelegateInstance<void (), FDefaultDelegateUserPolicy, FMetaHumanCharacterEditorBuild::BuildMetaHumanCharacter(TNotNull<UMetaHumanCharacter*>, FMetaHumanCharacterEditorBuildParameters const&)::$_0::operator()(EMetaHumanCharacterAssetsUnpackResult) const::‘lambda’()>::ExecuteIfSafe() const [UnknownFile])
0x216c2abc UnrealEditor-MetaHumanCharacterPalette.dylib!void TMulticastDelegateBase::Broadcast<IBaseDelegateInstance<void (), FDefaultDelegateUserPolicy>>() const [UnknownFile])
0x216c66a8 UnrealEditor-MetaHumanCharacterPalette.dylib!decltype(auto) UE::Core::Private::Tuple::TTupleBase::ApplyAfter<UMetaHumanCharacterInstance::Assemble(EMetaHumanCharacterPaletteBuildQuality, FMetaHumanCharacterAssembled const&, TDelegate<void (EMetaHumanCharacterAssemblyResult), FDefaultDelegateUserPolicy> const&)::$_0&, FMetaHumanAssemblyOutput>(UMetaHumanCharacterInstance::Assemble(EMetaHumanCharacterPaletteBuildQuality, FMetaHumanCharacterAssembled const&, TDelegate<void (EMetaHumanCharacterAssemblyResult), FDefaultDelegateUserPolicy> const&)::$_0&, FMetaHumanAssemblyOutput&&) const & [UnknownFile])
0x216c5d70 UnrealEditor-MetaHumanCharacterPalette.dylib!TWeakBaseFunctorDelegateInstance<void (FMetaHumanAssemblyOutput&&), FDefaultDelegateUserPolicy, UMetaHumanCharacterInstance::Assemble(EMetaHumanCharacterPaletteBuildQuality, FMetaHumanCharacterAssembled const&, TDelegate<void (EMetaHumanCharacterAssemblyResult), FDefaultDelegateUserPolicy> const&)::$_0>::ExecuteIfSafe(FMetaHumanAssemblyOutput&&) const [UnknownFile])
0x21e153a8 UnrealEditor-MetaHumanDefaultPipeline.dylib!UMetaHumanDefaultPipelineBase::AssembleCollection(TNotNull<UMetaHumanCollection const*>, EMetaHumanCharacterPaletteBuildQuality, TArray<FMetaHumanPipelineSlotSelectionData, TSizedDefaultAllocator<32>> const&, FInstancedStruct const&, TNotNull<UObject*>, TDelegate<void (FMetaHumanAssemblyOutput&&), FDefaultDelegateUserPolicy> const&) const [UnknownFile])
0x216a709c UnrealEditor-MetaHumanCharacterPalette.dylib!UMetaHumanCharacterInstance::Assemble(EMetaHumanCharacterPaletteBuildQuality, FMetaHumanCharacterAssembled const&, TDelegate<void (EMetaHumanCharacterAssemblyResult), FDefaultDelegateUserPolicy> const&) [UnknownFile])
0x216a77f8 UnrealEditor-MetaHumanCharacterPalette.dylib!UMetaHumanCharacterInstance::OnPaletteBuilt(EMetaHumanCharacterPaletteBuildQuality) [UnknownFile])
0x216c9548 UnrealEditor-MetaHumanCharacterPalette.dylib!TBaseUObjectMethodDelegateInstance<false, UMetaHumanCharacterInstance, void (EMetaHumanCharacterPaletteBuildQuality), FDefaultDelegateUserPolicy>::ExecuteIfSafe(EMetaHumanCharacterPaletteBuildQuality) const [UnknownFile])
0x216ce4f8 UnrealEditor-MetaHumanCharacterPalette.dylib!void TMulticastDelegateBase::Broadcast<IBaseDelegateInstance<void (EMetaHumanCharacterPaletteBuildQuality), FDefaultDelegateUserPolicy>, EMetaHumanCharacterPaletteBuildQuality>(EMetaHumanCharacterPaletteBuildQuality) const [UnknownFile])
0x216ce3f0 UnrealEditor-MetaHumanCharacterPalette.dylib!decltype(auto) UE::Core::Private::Tuple::TTupleBase::ApplyAfter<UMetaHumanCollection::Build(FInstancedStruct const&, EMetaHumanCharacterPaletteBuildQuality, ITargetPlatform*, TDelegate<void (EMetaHumanBuildStatus), FDefaultDelegateUserPolicy> const&, TArray<FMetaHumanPinnedSlotSelection, TSizedDefaultAllocator<32>> const&, TArray<FMetaHumanPaletteItemPath, TSizedDefaultAllocator<32>> const&)::$_2&, EMetaHumanBuildStatus, TSharedPtr<FMetaHumanCollectionBuiltData, (ESPMode)1>>(UMetaHumanCollection::Build(FInstancedStruct const&, EMetaHumanCharacterPaletteBuildQuality, ITargetPlatform*, TDelegate<void (EMetaHumanBuildStatus), FDefaultDelegateUserPolicy> const&, TArray<FMetaHumanPinnedSlotSelection, TSizedDefaultAllocator<32>> const&, TArray<FMetaHumanPaletteItemPath, TSizedDefaultAllocator<32>> const&)::$_2&, EMetaHumanBuildStatus&&, TSharedPtr<FMetaHumanCollectionBuiltData, (ESPMode)1>&&) const & [UnknownFile])
0x216ce17c UnrealEditor-MetaHumanCharacterPalette.dylib!TWeakBaseFunctorDelegateInstance<void (EMetaHumanBuildStatus, TSharedPtr<FMetaHumanCollectionBuiltData, (ESPMode)1>), FDefaultDelegateUserPolicy, UMetaHumanCollection::Build(FInstancedStruct const&, EMetaHumanCharacterPaletteBuildQuality, ITargetPlatform*, TDelegate<void (EMetaHumanBuildStatus), FDefaultDelegateUserPolicy> const&, TArray<FMetaHumanPinnedSlotSelection, TSizedDefaultAllocator<32>> const&, TArray<FMetaHumanPaletteItemPath, TSizedDefaultAllocator<32>> const&)::$_2>::ExecuteIfSafe(EMetaHumanBuildStatus, TSharedPtr<FMetaHumanCollectionBuiltData, (ESPMode)1>) const [UnknownFile])
0x2f81a588 UnrealEditor-MetaHumanDefaultEditorPipeline.dylib!UMetaHumanDefaultEditorPipelineBase::BuildCollection(TNotNull<UMetaHumanCollection const*>, TNotNull<UObject*>, TArray<FMetaHumanPinnedSlotSelection, TSizedDefaultAllocator<32>> const&, TArray<FMetaHumanPaletteItemPath, TSizedDefaultAllocator<32>> const&, FInstancedStruct const&, EMetaHumanCharacterPaletteBuildQuality, ITargetPlatform*, TDelegate<void (EMetaHumanBuildStatus, TSharedPtr<FMetaHumanCollectionBuiltData, (ESPMode)1>), FDefaultDelegateUserPolicy> const&) const [UnknownFile])
0x216b0d38 UnrealEditor-MetaHumanCharacterPalette.dylib!UMetaHumanCollection::Build(FInstancedStruct const&, EMetaHumanCharacterPaletteBuildQuality, ITargetPlatform*, TDelegate<void (EMetaHumanBuildStatus), FDefaultDelegateUserPolicy> const&, TArray<FMetaHumanPinnedSlotSelection, TSizedDefaultAllocator<32>> const&, TArray<FMetaHumanPaletteItemPath, TSizedDefaultAllocator<32>> const&) [UnknownFile])
0x2f82cbf0 UnrealEditor-MetaHumanDefaultEditorPipeline.dylib!UMetaHumanDefaultEditorPipelineBase::UnpackCollectionAssets(TNotNull<UMetaHumanCollection*>, FMetaHumanCollectionBuiltData&, TDelegate<void (EMetaHumanBuildStatus), FDefaultDelegateUserPolicy> const&) const [UnknownFile])
0x216b1288 UnrealEditor-MetaHumanCharacterPalette.dylib!UMetaHumanCollection::UnpackAssets(TDelegate<void (EMetaHumanCharacterAssetsUnpackResult), FDefaultDelegateUserPolicy> const&) [UnknownFile])
0x2330ed7c UnrealEditor-MetaHumanCharacterEditor.dylib!FMetaHumanCharacterEditorBuild::BuildMetaHumanCharacter(TNotNull<UMetaHumanCharacter*>, FMetaHumanCharacterEditorBuildParameters const&) [UnknownFile])
0x23287664 UnrealEditor-MetaHumanCharacterEditor.dylib!UMetaHumanCharacterEditorSubsystem::BuildMetaHuman(UMetaHumanCharacter*, FMetaHumanCharacterEditorBuildParameters const&) [UnknownFile])
0x2338acdc UnrealEditor-MetaHumanCharacterEditor.dylib!UMetaHumanCharacterEditorPipelineTool::Build() const [UnknownFile])
0x234789a4 UnrealEditor-MetaHumanCharacterEditor.dylib!SMetaHumanCharacterEditorPipelineToolView::OnAssembleButtonClicked() [UnknownFile])
0x235d252c UnrealEditor-MetaHumanCharacterEditor.dylib!TBaseSPMethodDelegateInstance<false, SMetaHumanCharacterEditorPipelineToolView, (ESPMode)1, FReply (), FDefaultDelegateUserPolicy>::Execute() const [UnknownFile])
0x0363d990 UnrealEditor-Slate.dylib!SButton::ExecuteOnClick() [UnknownFile])
0x0365404c UnrealEditor-Slate.dylib!SButton::OnMouseButtonUp(FGeometry const&, FPointerEvent const&) [UnknownFile])
0x03445e40 UnrealEditor-Slate.dylib!FSlateApplication::RoutePointerUpEvent(FWidgetPath const&, FPointerEvent const&) [UnknownFile])
0x03418b68 UnrealEditor-Slate.dylib!FSlateApplication::ProcessMouseButtonUpEvent(FPointerEvent const&) [UnknownFile])
0x0344a218 UnrealEditor-Slate.dylib!FSlateApplication::OnMouseUp(EMouseButtons::Type, UE::Math::TVector2) [UnknownFile])
0x03206ce8 UnrealEditor-ApplicationCore.dylib!FMacApplication::ProcessMouseUpEvent(FDeferredMacEvent const&, TSharedPtr<FMacWindow, (ESPMode)1>) [UnknownFile])
0x0320206c UnrealEditor-ApplicationCore.dylib!FMacApplication::ProcessEvent(FDeferredMacEvent const&) [UnknownFile])
0x03201c80 UnrealEditor-ApplicationCore.dylib!FMacApplication::ProcessDeferredEvents(float) [UnknownFile])
0x0342d81c UnrealEditor-Slate.dylib!FSlateApplication::TickPlatform(float) [UnknownFile])
0x0342d318 UnrealEditor-Slate.dylib!FSlateApplication::Tick(ESlateTickType) [UnknownFile])
0x02a39350 UnrealEditor!FEngineLoop::Tick() [UnknownFile])
0x02a3d53c UnrealEditor!GuardedMain(char16_t const*) [UnknownFile])
0x02a542cc UnrealEditor!-[UEAppDelegate runGameThread:] [UnknownFile])
0x065e4714 UnrealEditor-Core.dylib!-[FCocoaGameThread main] [UnknownFile])
0x8a3e57a0 Foundation!NSThread__start() [UnknownFile])
0x88b2dc08 libsystem_pthread.dylib!_pthread_start() [UnknownFile])
0x88b28ba8 libsystem_pthread.dylib!thread_start() [UnknownFile])