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"Found unexpected ChildActorTemplate" crash after Load Stream Level

Load Stream Level crashes the game in PIE using version 4.18.3. For some reason it doesn't log the crash call stack so I had to copy call stack from Visual Studio:

 [Inline Frame] UE4Editor-Engine.dll!FWindowsPlatformMisc::DebugBreak() Line 56    
 [Inline Frame] UE4Editor-Engine.dll!FWindowsPlatformMisc::DebugBreakAndPromptForRemoteReturningFalse(bool) Line 80    
 UE4Editor-Engine.dll!UChildActorComponent::Serialize(FArchive & Ar) Line 95    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 UE4Editor-CoreUObject.dll!UArrayProperty::SerializeItem(FArchive & Ar, void * Value, const void * Defaults) Line 210    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UActorComponent::Serialize(FArchive & Ar) Line 1792    
 UE4Editor-Engine.dll!USceneComponent::Serialize(FArchive & Ar) Line 2210    
 UE4Editor-Engine.dll!UChildActorComponent::Serialize(FArchive & Ar) Line 59    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 UE4Editor-CoreUObject.dll!UArrayProperty::SerializeItem(FArchive & Ar, void * Value, const void * Defaults) Line 210    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UActorComponent::Serialize(FArchive & Ar) Line 1792    
 UE4Editor-Engine.dll!USceneComponent::Serialize(FArchive & Ar) Line 2210    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UActorComponent::Serialize(FArchive & Ar) Line 1792    
 UE4Editor-Engine.dll!USceneComponent::Serialize(FArchive & Ar) Line 2210    
 UE4Editor-Engine.dll!UChildActorComponent::Serialize(FArchive & Ar) Line 59    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!AActor::Serialize(FArchive & Ar) Line 559    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UScriptStruct::SerializeItem(FArchive & Ar, void * Value, const void * Defaults) Line 2034    
 UE4Editor-CoreUObject.dll!UStructProperty::SerializeItem(FArchive & Ar, void * Value, const void * Defaults) Line 116    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!AActor::Serialize(FArchive & Ar) Line 559    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UActorComponent::Serialize(FArchive & Ar) Line 1792    
 UE4Editor-Engine.dll!USceneComponent::Serialize(FArchive & Ar) Line 2210    
 UE4Editor-Engine.dll!UChildActorComponent::Serialize(FArchive & Ar) Line 59    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UActorComponent::Serialize(FArchive & Ar) Line 1792    
 UE4Editor-Engine.dll!USceneComponent::Serialize(FArchive & Ar) Line 2210    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UActorComponent::Serialize(FArchive & Ar) Line 1792    
 UE4Editor-Engine.dll!USceneComponent::Serialize(FArchive & Ar) Line 2210    
 UE4Editor-Engine.dll!UPrimitiveComponent::Serialize(FArchive & Ar) Line 762    
 UE4Editor-Engine.dll!UStaticMeshComponent::Serialize(FArchive & Ar) Line 296    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!AActor::Serialize(FArchive & Ar) Line 559    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UActorChannel::Serialize(FArchive & Ar) Line 2637    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 UE4Editor-CoreUObject.dll!UArrayProperty::SerializeItem(FArchive & Ar, void * Value, const void * Defaults) Line 210    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UNetConnection::Serialize(FArchive & Ar) Line 356    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!AActor::Serialize(FArchive & Ar) Line 559    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!AActor::Serialize(FArchive & Ar) Line 559    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!AActor::Serialize(FArchive & Ar) Line 559    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!AActor::Serialize(FArchive & Ar) Line 559    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-Engine.dll!operator<<(FArchive &) Line 92    
 UE4Editor-Engine.dll!operator<<(FArchive & Ar, TArray<AActor *,FDefaultAllocator> & A) Line 1097    
 UE4Editor-Engine.dll!ULevel::Serialize(FArchive & Ar) Line 315    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-CoreUObject.dll!UProperty::SerializeBinProperty(FArchive &) Line 269    
 UE4Editor-CoreUObject.dll!UStruct::SerializeBin(FArchive & Ar, void * Data) Line 837    
 UE4Editor-CoreUObject.dll!UObject::SerializeScriptProperties(FArchive & Ar) Line 1298    
 UE4Editor-CoreUObject.dll!UObject::Serialize(FArchive & Ar) Line 1215    
 UE4Editor-Engine.dll!UWorld::Serialize(FArchive & Ar) Line 361    
 UE4Editor-Engine.dll!FFixupSmartPointersForPIEArchive::operator<<(UObject * & Object) Line 2641    
 [Inline Frame] UE4Editor-Engine.dll!operator<<(FArchive &) Line 734    
 UE4Editor-Engine.dll!UWorld::DuplicateWorldForPIE(const FString & PackageName, UWorld * OwningWorld) Line 2717    
 UE4Editor-Engine.dll!ULevelStreaming::RequestLevel(UWorld * PersistentWorld, bool bAllowLevelLoadRequests, ULevelStreaming::EReqLevelBlock BlockPolicy) Line 463    
 UE4Editor-Engine.dll!UWorld::UpdateLevelStreamingInner(ULevelStreaming * StreamingLevel) Line 2839    
 UE4Editor-Engine.dll!UWorld::UpdateLevelStreaming() Line 2918    
 UE4Editor-Engine.dll!UGameViewportClient::Draw(FViewport * InViewport, FCanvas * SceneCanvas) Line 1229    
 UE4Editor-Engine.dll!FViewport::Draw(bool bShouldPresent) Line 1213    
 UE4Editor-UnrealEd.dll!UEditorEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 1862    
 UE4Editor-UnrealEd.dll!UUnrealEdEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 396    
 UE4Editor.exe!FEngineLoop::Tick() Line 3296    
 [Inline Frame] UE4Editor.exe!EngineTick() Line 62    
 UE4Editor.exe!GuardedMain(const wchar_t * CmdLine, HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, int nCmdShow) Line 166    
 UE4Editor.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow) Line 199    

It has something to do with child actor components but solutions from https://answers.unrealengine.com/questions/604285/416-updated-project-crashes-skel-linkerplaceholder.html didn't help.

If child actor components mentioned in error message are removed then it'll work, but it'll be too bothersome to replace all child actor components with actors.

Product Version: UE 4.18
Tags:
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asked Mar 06 '18 at 03:19 PM in Bug Reports

avatar image

AlekseyIlin
304 15 18 28

avatar image Jeff A ♦♦ STAFF Mar 06 '18 at 04:05 PM

Hello,

We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form

Thanks

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