Description

No known steps to reproduce

There is a UEMP bug entered but wanted to make one UE side for visibility: UEMP-8

Steps to Reproduce

No known steps to reproduce

Callstack
Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:Runtime/Core/Public/Containers/Array.h] [Line: 610] Array index out of bounds: 0 from an array of size 0

UE4Editor-CoreUObject.dylib!FLinkerPlaceholderObjectImpl::FindRawPlaceholderContainer() 
UE4Editor-CoreUObject.dylib!FLinkerPlaceholderBase::AddReferencingPropertyValue() 
UE4Editor-CoreUObject.dylib!UObjectProperty::SerializeItem() 
UE4Editor-CoreUObject.dylib!FPropertyTag::SerializeTaggedProperty() 
UE4Editor-CoreUObject.dylib!UStruct::SerializeTaggedProperties() 
UE4Editor-CoreUObject.dylib!UObject::SerializeScriptProperties() 
UE4Editor-CoreUObject.dylib!UObject::Serialize() 
UE4Editor-UMG.dylib!UUserWidget::Serialize() 
UE4Editor-Engine.dylib!FCPFUOReader::FCPFUOReader() 
UE4Editor-Engine.dylib!UEngine::CopyPropertiesForUnrelatedObjects() 
UE4Editor-UnrealEd.dylib!FBlueprintCompileReinstancer::CopyPropertiesForUnrelatedObjects() 
UE4Editor-Kismet.dylib!FBlueprintCompilationManagerImpl::ReinstanceBatch() 
UE4Editor-Kismet.dylib!FBlueprintCompilationManagerImpl::FlushCompilationQueueImpl() 
UE4Editor-Kismet.dylib!FBlueprintCompilationManager::FlushCompilationQueue() 
UE4Editor-CoreUObject.dylib!FScopedClassDependencyGather::~FScopedClassDependencyGather() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::CreateExport() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::IndexToObject() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::CreateExport() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::LoadAllObjects() 
UE4Editor-CoreUObject.dylib!LoadPackageInternal() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImportInner() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImport() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImportInner() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImport() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::Verify() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::FinalizeCreation() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::Tick() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::CreateLinker() 
UE4Editor-CoreUObject.dylib!GetPackageLinker() 
UE4Editor-CoreUObject.dylib!LoadPackageInternal() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImportInner() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImport() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::Verify() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::FinalizeCreation() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::Tick() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::CreateLinker() 
UE4Editor-CoreUObject.dylib!GetPackageLinker() 
UE4Editor-CoreUObject.dylib!LoadPackageInternal() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImportInner() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImport() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImportInner() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::VerifyImport() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::Verify() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::FinalizeCreation() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::Tick() 
UE4Editor-CoreUObject.dylib!FLinkerLoad::CreateLinker() 
UE4Editor-CoreUObject.dylib!GetPackageLinker() 
UE4Editor-CoreUObject.dylib!LoadPackageInternal() 
UE4Editor-CoreUObject.dylib!LoadPackage() 
UE4Editor-UnrealEd.dylib!UCookOnTheFlyServer::LoadPackageForCooking() 
UE4Editor-UnrealEd.dylib!UCookOnTheFlyServer::TickCookOnTheSide() 
UE4Editor-UnrealEd.dylib!UCookOnTheFlyServer::Tick() 
UE4Editor-UnrealEd.dylib!FTickableEditorObject::TickObjects() 
UE4Editor-UnrealEd.dylib!UEditorEngine::Tick() 
UE4Editor-UnrealEd.dylib!UUnrealEdEngine::Tick() 
UE4Editor!FEngineLoop::Tick() 
UE4Editor!GuardedMain() 
UE4Editor!<Unknown> 
UE4Editor-Core.dylib!<Unknown> 
Foundation!Unknown() 
libsystem_pthread.dylib!<Unknown> 
libsystem_pthread.dylib!<Unknown> 
libsystem_pthread.dylib!<Unknown> 

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Fixed
ComponentGameplay - Blueprint Runtime
Affects Versions4.19
Target Fix4.19.1
Fix Commit3961139
CreatedMar 2, 2018
ResolvedMar 23, 2018
UpdatedApr 27, 2018