A licensee is reporting a crash where loading a sublevel that contains an actor with a child actor component can cause a crash. After speaking to Marc Audy, this seems to be related to the initialization of the child actor not causing an Async flush.
Regression?: Not that we are aware of at this time.
None at the moment, JIRA was requested to be entered before repro was confirmed
[Inline Frame] UE4Editor-CoreUObject.dll!FWindowsPlatformMisc::DebugBreak() Line 56 C++ UE4Editor-CoreUObject.dll!UObject::ProcessEvent(UFunction * Function, void * Parms) Line 1159 C++ UE4Editor-Engine.dll!AActor::ProcessEvent(UFunction * Function, void * Parameters) Line 693 C++ UE4Editor-Engine.dll!AActor::ProcessUserConstructionScript() Line 849 C++ UE4Editor-Engine.dll!AActor::ExecuteConstruction(const FTransform & Transform, const FRotationConversionCache * TransformRotationCache, const FComponentInstanceDataCache * InstanceDataCache, bool bIsDefaultTransform) Line 833 C++ UE4Editor-Engine.dll!AActor::FinishSpawning(const FTransform & UserTransform, bool bIsDefaultTransform, const FComponentInstanceDataCache * InstanceDataCache) Line 2924 C++ UE4Editor-Engine.dll!AActor::PostSpawnInitialize(const FTransform & UserSpawnTransform, AActor * InOwner, APawn * InInstigator, bool bRemoteOwned, bool bNoFail, bool bDeferConstruction) Line 2867 C++ UE4Editor-Engine.dll!UWorld::SpawnActor(UClass * Class, const FTransform * UserTransformPtr, const FActorSpawnParameters & SpawnParameters) Line 468 C++ UE4Editor-Engine.dll!UWorld::SpawnActor(UClass * Class, const FVector * Location, const FRotator * Rotation, const FActorSpawnParameters & SpawnParameters) Line 293 C++ UE4Editor-Engine.dll!UWorld::SpawnActor<AWorldSettings>(UClass * Class, const FActorSpawnParameters & SpawnParameters) Line 2727 C++ UE4Editor-Engine.dll!UWorld::RepairWorldSettings() Line 1119 C++ UE4Editor-Engine.dll!UWorld::PostLoad() Line 851 C++ UE4Editor-CoreUObject.dll!UObject::ConditionalPostLoad() Line 988 C++ UE4Editor-CoreUObject.dll!UObject::PostLoadSubobjects(FObjectInstancingGraph * OuterInstanceGraph) Line 1023 C++ UE4Editor-CoreUObject.dll!UObject::ConditionalPostLoad() Line 974 C++ UE4Editor-CoreUObject.dll!UObject::PostLoadSubobjects(FObjectInstancingGraph * OuterInstanceGraph) Line 1023 C++ UE4Editor-Engine.dll!AActor::PostLoadSubobjects(FObjectInstancingGraph * OuterInstanceGraph) Line 644 C++ UE4Editor-CoreUObject.dll!UObject::ConditionalPostLoad() Line 974 C++ UE4Editor-CoreUObject.dll!UObject::PostLoadSubobjects(FObjectInstancingGraph * OuterInstanceGraph) Line 1023 C++ UE4Editor-CoreUObject.dll!UObject::ConditionalPostLoad() Line 974 C++ UE4Editor-Engine.dll!UBodySetup::PostLoad() Line 1185 C++ UE4Editor-CoreUObject.dll!UObject::ConditionalPostLoad() Line 988 C++ UE4Editor-CoreUObject.dll!FAsyncPackage::PostLoadObjects() Line 6253 C++ UE4Editor-CoreUObject.dll!FAsyncPackage::TickAsyncPackage(bool InbUseTimeLimit, bool InbUseFullTimeLimit, float & InOutTimeLimit, FFlushTree * FlushTree) Line 5523 C++ UE4Editor-CoreUObject.dll!FAsyncLoadingThread::ProcessAsyncLoading(int & OutPackagesProcessed, bool bUseTimeLimit, bool bUseFullTimeLimit, float TimeLimit, FFlushTree * FlushTree) Line 4477 C++ UE4Editor-CoreUObject.dll!FAsyncLoadingThread::TickAsyncThread(bool bUseTimeLimit, bool bUseFullTimeLimit, float TimeLimit, bool & bDidSomething, FFlushTree * FlushTree) Line 4971 C++ UE4Editor-CoreUObject.dll!FAsyncLoadingThread::TickAsyncLoading(bool bUseTimeLimit, bool bUseFullTimeLimit, float TimeLimit, FFlushTree * FlushTree) Line 4706 C++ UE4Editor-CoreUObject.dll!FlushAsyncLoading(int PackageID) Line 6757 C++ UE4Editor-CoreUObject.dll!ResetLoaders(UObject * InPkg) Line 354 C++ UE4Editor-CoreUObject.dll!UObject::Rename(const wchar_t * InName, UObject * NewOuter, unsigned int Flags) Line 213 C++ UE4Editor-Engine.dll!AActor::Rename(const wchar_t * InName, UObject * NewOuter, unsigned int Flags) Line 827 C++ UE4Editor-Engine.dll!UChildActorComponent::ApplyComponentInstanceData(FChildActorComponentInstanceData * ChildActorInstanceData, const ECacheApplyPhase CacheApplyPhase) Line 381 C++ UE4Editor-Engine.dll!FComponentInstanceDataCache::ApplyToActor(AActor * Actor, const ECacheApplyPhase CacheApplyPhase) Line 438 C++ UE4Editor-Engine.dll!AActor::ExecuteConstruction(const FTransform & Transform, const FRotationConversionCache * TransformRotationCache, const FComponentInstanceDataCache * InstanceDataCache, bool bIsDefaultTransform) Line 755 C++ UE4Editor-Engine.dll!AActor::RerunConstructionScripts() Line 494 C++ UE4Editor-Engine.dll!ULevel::IncrementalUpdateComponents(int NumComponentsToUpdate, bool bRerunConstructionScripts) Line 948 C++ UE4Editor-Engine.dll!UWorld::AddToWorld(ULevel * Level, const FTransform & LevelTransform) Line 2163 C++ UE4Editor-Engine.dll!UWorld::UpdateLevelStreamingInner(ULevelStreaming * StreamingLevel) Line 2852 C++ UE4Editor-Engine.dll!UWorld::UpdateLevelStreaming() Line 2918 C++
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| 5 |
| Component | UE - Gameplay |
|---|---|
| Affects Versions | 4.18 |
| Target Fix | 4.19 |
| Created | Dec 1, 2017 |
|---|---|
| Resolved | Dec 7, 2017 |
| Updated | Apr 27, 2018 |