This is caused by the loss of data in the ULScapeHeightfieldCollisionComponent::CollisionHeightData.
The CollisionHeightData is not marked as BULKDATA_PayloadInSeperateFile and is processed with a kind of lazy loading. (The data is temporary stored in AttachedAr pointer)
However, if GC runs between deserialization and actual use, AttachedAr will be lost with deletion of UPackage(LinkerLoad).
The following workaround can solve the error by loading data into CollisionHeightData in deserialization.
void ULandscapeHeightfieldCollisionComponent::Serialize(FArchive& Ar)
{
...
#if WITH_EDITORONLY_DATA
// For PIE, we won't need the source height data if we already have a shared reference to the heightfield
if (!(Ar.GetPortFlags() & PPF_DuplicateForPIE) || !HeightfieldGuid.IsValid() || GSharedMeshRefs.FindRef(HeightfieldGuid) == nullptr)
{
CollisionHeightData.Serialize(Ar, this);
DominantLayerData.Serialize(Ar, this);
CollisionHeightData.Lock(LOCK_READ_ONLY); // workaround
CollisionHeightData.Unlock(); // workaround
if (Ar.CustomVer(FFortniteMainBranchObjectVersion::GUID) >= FFortniteMainBranchObjectVersion::LandscapePhysicalMaterialRenderData)
{
PhysicalMaterialRenderData.Serialize(Ar, this);
}
}
#endif//WITH_EDITORONLY_DATA
}
}
}
[CookSettings] PackagesPerGC=1
[your engine path] D:\dev\ue500projects\MyProject5\MyProject5.uproject -run=Cook -TargetPlatform=Windows -unversioned -map=8kmap
Crash occurs. We can see an error log before crash
LogSerialization: Error: Attempted to load bulk data without an attached archive. Most likely the bulk data was loaded twice on console, which is not supported
UnrealEditor-Landscape.dll!ULandscapeInfo::UpdateAddCollision() UnrealEditor-Landscape.dll!ULandscapeInfo::UpdateAllAddCollisions() UnrealEditor-Landscape.dll!ULandscapeInfo::RegisterActor() UnrealEditor-Landscape.dll!ALandscapeProxy::CreateLandscapeInfo() UnrealEditor-Landscape.dll!ALandscapeProxy::PostRegisterAllComponents() UnrealEditor-Landscape.dll!ALandscapeStreamingProxy::PostRegisterAllComponents() UnrealEditor-Engine.dll!AActor::IncrementalRegisterComponents() UnrealEditor-Engine.dll!ULevel::IncrementalRegisterComponents() UnrealEditor-Engine.dll!ULevel::IncrementalUpdateComponents() UnrealEditor-Engine.dll!ULevel::UpdateLevelComponents() UnrealEditor-Engine.dll!UWorld::UpdateWorldComponents() UnrealEditor-UnrealEd.dll!UEditorEngine::InitializePhysicsSceneForSaveIfNecessary() UnrealEditor-UnrealEd.dll!UEditorEngine::Save() UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::SaveCookedPackage() UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::PumpSaves() UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::TickCookOnTheSide() UnrealEditor-UnrealEd.dll!UCookCommandlet::CookByTheBook() UnrealEditor-UnrealEd.dll!UCookCommandlet::Main() UnrealEditor-Cmd.exe!FEngineLoop::PreInitPostStartupScreen() UnrealEditor-Cmd.exe!GuardedMain() UnrealEditor-Cmd.exe!GuardedMainWrapper() UnrealEditor-Cmd.exe!LaunchWindowsStartup() UnrealEditor-Cmd.exe!WinMain()
UnrealEditor-CoreUObject.dll!FUntypedBulkData::LockReadOnly() UnrealEditor-Landscape.dll!ULandscapeHeightfieldCollisionComponent::CookCollisionData(const FName & Format, bool bUseDefMaterial, bool bCheckDDC, TArray<unsigned char,TSizedDefaultAllocator<32>> & OutCookedData, TArray<UPhysicalMaterial *,TSizedDefaultAllocator<32>> & InOutMaterials) UnrealEditor-Landscape.dll!ULandscapeHeightfieldCollisionComponent::CreateCollisionObject() UnrealEditor-Landscape.dll!ULandscapeHeightfieldCollisionComponent::OnCreatePhysicsState() UnrealEditor-Engine.dll!UActorComponent::CreatePhysicsState(bool bAllowDeferral) UnrealEditor-Engine.dll!UActorComponent::RegisterComponentWithWorld(UWorld * InWorld, FRegisterComponentContext * Context) UnrealEditor-Engine.dll!AActor::IncrementalRegisterComponents(int NumComponentsToRegister, FRegisterComponentContext * Context) UnrealEditor-Engine.dll!ULevel::IncrementalRegisterComponents(bool bPreRegisterComponents, int NumComponentsToUpdate, FRegisterComponentContext * Context) UnrealEditor-Engine.dll!ULevel::IncrementalUpdateComponents(int NumComponentsToUpdate, bool bRerunConstructionScripts, FRegisterComponentContext * Context) UnrealEditor-Engine.dll!UWorld::UpdateWorldComponents(bool bRerunConstructionScripts, bool bCurrentLevelOnly, FRegisterComponentContext * Context) UnrealEditor-UnrealEd.dll!UEditorEngine::InitializePhysicsSceneForSaveIfNecessary(UWorld * World, bool & bOutForceInitialized) UnrealEditor-UnrealEd.dll!UEditorEngine::Save(UPackage * InOuter, UObject * InAsset, const wchar_t * Filename, const FSavePackageArgs & InSaveArgs) UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::SaveCookedPackage(UE::Cook::FSaveCookedPackageContext & Context) UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::PumpSaves(UE::Cook::FTickStackData & StackData, unsigned int DesiredQueueLength, int & OutNumPushed, bool & bOutBusy) [Inline Frame] UnrealEditor-UnrealEd.dll!IsEngineExitRequested() UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::TickCookOnTheSide(const float TimeSlice, unsigned int & CookedPackageCount, ECookTickFlags TickFlags) UnrealEditor-UnrealEd.dll!UCookCommandlet::CookByTheBook(const TArray<ITargetPlatform *,TSizedDefaultAllocator<32>> & Platforms) UnrealEditor-UnrealEd.dll!UCookCommandlet::Main(const FString & CmdLineParams) UnrealEditor.exe!FEngineLoop::PreInitPostStartupScreen(const wchar_t * CmdLine) [Inline Frame] UnrealEditor.exe!FEngineLoop::PreInit(const wchar_t *) [Inline Frame] UnrealEditor.exe!EnginePreInit(const wchar_t *) UnrealEditor.exe!GuardedMain(const wchar_t * CmdLine) UnrealEditor.exe!LaunchWindowsStartup(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow, const wchar_t * CmdLine) UnrealEditor.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * pCmdLine, int nCmdShow) [Inline Frame] UnrealEditor.exe!invoke_main() UnrealEditor.exe!__scrt_common_main_seh() kernel32.dll!00007ffc87dc7034() ntdll.dll!00007ffc88602651() UnrealEditor-Landscape.dll!ULandscapeInfo::UpdateAddCollision() UnrealEditor-Landscape.dll!ULandscapeInfo::UpdateAllAddCollisions() UnrealEditor-Landscape.dll!ULandscapeInfo::RegisterActor() UnrealEditor-Landscape.dll!ALandscapeProxy::CreateLandscapeInfo() UnrealEditor-Landscape.dll!ALandscapeProxy::PostRegisterAllComponents() UnrealEditor-Landscape.dll!ALandscapeStreamingProxy::PostRegisterAllComponents() UnrealEditor-Engine.dll!AActor::IncrementalRegisterComponents() UnrealEditor-Engine.dll!ULevel::IncrementalRegisterComponents() UnrealEditor-Engine.dll!ULevel::IncrementalUpdateComponents() UnrealEditor-Engine.dll!ULevel::UpdateLevelComponents() UnrealEditor-Engine.dll!UWorld::UpdateWorldComponents() UnrealEditor-UnrealEd.dll!UEditorEngine::InitializePhysicsSceneForSaveIfNecessary() UnrealEditor-UnrealEd.dll!UEditorEngine::Save() UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::SaveCookedPackage() UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::PumpSaves() UnrealEditor-UnrealEd.dll!UCookOnTheFlyServer::TickCookOnTheSide() UnrealEditor-UnrealEd.dll!UCookCommandlet::CookByTheBook() UnrealEditor-UnrealEd.dll!UCookCommandlet::Main() UnrealEditor-Cmd.exe!FEngineLoop::PreInitPostStartupScreen() UnrealEditor-Cmd.exe!GuardedMain() UnrealEditor-Cmd.exe!GuardedMainWrapper() UnrealEditor-Cmd.exe!LaunchWindowsStartup() UnrealEditor-Cmd.exe!WinMain()
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-157537 in the post.
| 1 |
| Component | UE - LD & Modeling - Terrain - Landscape |
|---|---|
| Affects Versions | 5.0 |
| Target Fix | 5.1 |
| Created | Jun 24, 2022 |
|---|---|
| Resolved | Jul 5, 2022 |
| Updated | Jul 11, 2022 |