Unreal Engine Issues and Bug Tracker (UE-81109)

Description

Creating a duplicate of a Blueprint class that has an AttributeSet seems to be interfering with the creation of the AttributeSet.

Steps to Reproduce

1) Create a new Action RPG Sample Project from the launcher.

2)Within the Blueprints Folder->Create a Duplicate of Blueprint class of "BP_PlayerCharacter". Right click on "BP_PlayerCharacter" and select Duplicate.

3) Set the Duplicated Blueprint class "BP_PlayerCharacter1" as the Default Pawn Class for the selected GameMode in the World Settings panel.

4) Play in Editor. Press enter to pass the intro.

Results: Editor crashes. See Call Stack for full log.

Expected: Editor should continue playing the game normally as if the original "BP_PlayerCharacter" class was the Default Pawn Class

Callstack

UE4Editor_GameplayAbilities!FGameplayAttributeData::GetCurrentValue() [d:\build\++ue4\sync\engine\plugins\runtime\gameplayabilities\source\gameplayabilities\private\attributeset.cpp:35]
UE4Editor_ActionRPG!ARPGCharacterBase::HandleMoveSpeedChanged() [d:\build\++ue4\sync\localbuilds\actionrpg\windows\source\actionrpg\private\rpgcharacterbase.cpp:396]
UE4Editor_ActionRPG!URPGAttributeSet::PostGameplayEffectExecute() [d:\build\++ue4\sync\localbuilds\actionrpg\windows\source\actionrpg\private\abilities\rpgattributeset.cpp:215]
UE4Editor_GameplayAbilities!FActiveGameplayEffectsContainer::InternalExecuteMod() [d:\build\++ue4\sync\engine\plugins\runtime\gameplayabilities\source\gameplayabilities\private\gameplayeffect.cpp:2668]
UE4Editor_GameplayAbilities!FActiveGameplayEffectsContainer::ExecuteActiveEffectsFrom() [d:\build\++ue4\sync\engine\plugins\runtime\gameplayabilities\source\gameplayabilities\private\gameplayeffect.cpp:1924]
UE4Editor_GameplayAbilities!UAbilitySystemComponent::ExecuteGameplayEffect() [d:\build\++ue4\sync\engine\plugins\runtime\gameplayabilities\source\gameplayabilities\private\abilitysystemcomponent.cpp:856]
UE4Editor_GameplayAbilities!UAbilitySystemComponent::ApplyGameplayEffectSpecToSelf() [d:\build\++ue4\sync\engine\plugins\runtime\gameplayabilities\source\gameplayabilities\private\abilitysystemcomponent.cpp:756]
UE4Editor_GameplayAbilities!UAbilitySystemComponent::ApplyGameplayEffectSpecToTarget() [d:\build\++ue4\sync\engine\plugins\runtime\gameplayabilities\source\gameplayabilities\private\abilitysystemcomponent.cpp:556]
UE4Editor_ActionRPG!ARPGCharacterBase::AddStartupGameplayAbilities() [d:\build\++ue4\sync\localbuilds\actionrpg\windows\source\actionrpg\private\rpgcharacterbase.cpp:47]
UE4Editor_ActionRPG!ARPGCharacterBase::PossessedBy() [d:\build\++ue4\sync\localbuilds\actionrpg\windows\source\actionrpg\private\rpgcharacterbase.cpp:210]
UE4Editor_Engine!APlayerController::Possess() [d:\build\++ue4\sync\engine\source\runtime\engine\private\playercontroller.cpp:778]
UE4Editor_ActionRPG!ARPGPlayerControllerBase::Possess() [d:\build\++ue4\sync\localbuilds\actionrpg\windows\source\actionrpg\private\rpgplayercontrollerbase.cpp:393]
UE4Editor_Engine!AGameModeBase::FinishRestartPlayer() [d:\build\++ue4\sync\engine\source\runtime\engine\private\gamemodebase.cpp:1302]
UE4Editor_Engine!AGameModeBase::RestartPlayerAtPlayerStart() [d:\build\++ue4\sync\engine\source\runtime\engine\private\gamemodebase.cpp:1257]
UE4Editor_Engine!AGameModeBase::RestartPlayer() [d:\build\++ue4\sync\engine\source\runtime\engine\private\gamemodebase.cpp:1210]
UE4Editor_Engine!AGameModeBase::execRestartPlayer() [d:\build\++ue4\sync\engine\source\runtime\engine\classes\gameframework\gamemodebase.h:48]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4861]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:816]
UE4Editor_CoreUObject!UObject::execVirtualFunction() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2436]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1031]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:940]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1031]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:940]
UE4Editor_CoreUObject!UObject::execVirtualFunction() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2436]
UE4Editor_CoreUObject!UObject::ProcessContextOpcode() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2330]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1031]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:940]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1031]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4861]
UE4Editor_CoreUObject!UObject::ProcessEvent() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1480]
UE4Editor_Engine!AActor::ProcessEvent() [d:\build\++ue4\sync\engine\source\runtime\engine\private\actor.cpp:713]
UE4Editor_MovieScene!TMulticastScriptDelegate<FWeakObjectPtr>::ProcessMulticastDelegate<UObject>() [d:\build\++ue4\sync\engine\source\runtime\core\public\uobject\scriptdelegates.h:488]
UE4Editor_MovieScene!UMovieSceneSequencePlayer::UpdateTimeCursorPosition_Internal() [d:\build\++ue4\sync\engine\source\runtime\moviescene\private\moviescenesequenceplayer.cpp:652]
UE4Editor_MovieScene!UMovieSceneSequencePlayer::Update() [d:\build\++ue4\sync\engine\source\runtime\moviescene\private\moviescenesequenceplayer.cpp:525]
UE4Editor_LevelSequence!ALevelSequenceActor::Tick() [d:\build\++ue4\sync\engine\source\runtime\levelsequence\private\levelsequenceactor.cpp:107]
UE4Editor_Engine!AActor::TickActor() [d:\build\++ue4\sync\engine\source\runtime\engine\private\actor.cpp:914]
UE4Editor_Engine!FActorTickFunction::ExecuteTick() [d:\build\++ue4\sync\engine\source\runtime\engine\private\actor.cpp:137]
UE4Editor_Engine!TGraphTask<FTickFunctionTask>::ExecuteTask() [d:\build\++ue4\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:829]
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4\sync\engine\source\runtime\core\private\async\taskgraph.cpp:679]
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4\sync\engine\source\runtime\core\private\async\taskgraph.cpp:575]
UE4Editor_Core!FTaskGraphImplementation::WaitUntilTasksComplete() [d:\build\++ue4\sync\engine\source\runtime\core\private\async\taskgraph.cpp:1444]
UE4Editor_Engine!FTickTaskSequencer::ReleaseTickGroup() [d:\build\++ue4\sync\engine\source\runtime\engine\private\ticktaskmanager.cpp:556]
UE4Editor_Engine!FTickTaskManager::RunTickGroup() [d:\build\++ue4\sync\engine\source\runtime\engine\private\ticktaskmanager.cpp:1474]
UE4Editor_Engine!UWorld::RunTickGroup() [d:\build\++ue4\sync\engine\source\runtime\engine\private\leveltick.cpp:783]
UE4Editor_Engine!UWorld::Tick() [d:\build\++ue4\sync\engine\source\runtime\engine\private\leveltick.cpp:1460]
UE4Editor_UnrealEd!UEditorEngine::Tick() [d:\build\++ue4\sync\engine\source\editor\unrealed\private\editorengine.cpp:1726]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\build\++ue4\sync\engine\source\editor\unrealed\private\unrealedengine.cpp:403]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3699]
UE4Editor!GuardedMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launch.cpp:174]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
UE4Editor!WinMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:276]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283]
kernel32
ntdll

Community References

"Session Disconnected" UEFN

How to delete some elements correctly when deleting an array loop?

Do I need to call Destory method to remove components from Actor when Destory method to remove Actor?

How does TextureRenderTarget2D get TArray<uint8> type data?

Where can I download the source address of the deployment cotum service associated with the PixelStream plugin?

Why does the REMOVE method of map container remove elements have memory leaks?

What is the cause of the packaging error falling back to 'GameUserSettings' in ue5?

How do I set a material as a post-processing material?

How does TArray loop correctly remove elements in blueprints?

What is the difference between Camera and CineCamera?

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-81109 in the post.

45	Login to Vote

Won't Fix

Component	UE - Gameplay
Affects Versions	4.21, 4.22, 4.23

Created	Oct 1, 2019
Resolved	Aug 27, 2021
Updated	Aug 27, 2021

View Jira Issue

UE-81109

Playing as a Pawn that is a Duplicate of a Blueprint Class doesn't create an Attribute Set

Playing as a Pawn that is a Duplicate of a Blueprint Class doesn't create an Attribute Set

Have Comments or More Details?