Unreal Engine Issues and Bug Tracker (UE-171743)

Description

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression.

Issue does not occur when user Simulates in level viewport, nor when geometry collection is initially set to enable physics without the beginplay cmd.

Steps to Reproduce

Create a new actor BP
Add a Geometry Collection component
In Event Graph, drag off from BeginPlay
Search and select "Set Simulate Physics(Geometry Collection)
Compile
Click the Simulation Button (The one next to Class Defaults, not the alt-S command)

Actual Result: Editor crashes immediately

Expected Result: Geometry Collection should "fall" infinitely in the Blueprint Viewport

Callstack

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000060
UnrealEditor_Chaos!FManagedArrayCollection::SyncGroupSizeFrom() [D:\build\++UE5\Sync\Engine\Source\Runtime\Experimental\Chaos\Private\GeometryCollection\ManagedArrayCollection.cpp:340]
UnrealEditor_Chaos!FManagedArrayCollection::CopyMatchingAttributesFrom() [D:\build\++UE5\Sync\Engine\Source\Runtime\Experimental\Chaos\Private\GeometryCollection\ManagedArrayCollection.cpp:352]
UnrealEditor_Chaos!FGeometryCollectionPhysicsProxy::InitializeDynamicCollection() [D:\build\++UE5\Sync\Engine\Source\Runtime\Experimental\Chaos\Private\PhysicsProxy\GeometryCollectionPhysicsProxy.cpp:684]
UnrealEditor_Chaos!FGeometryCollectionPhysicsProxy::Initialize() [D:\build\++UE5\Sync\Engine\Source\Runtime\Experimental\Chaos\Private\PhysicsProxy\GeometryCollectionPhysicsProxy.cpp:408]
UnrealEditor_Chaos!Chaos::FPBDRigidsSolver::RegisterObject() [D:\build\++UE5\Sync\Engine\Source\Runtime\Experimental\Chaos\Private\PBDRigidsSolver.cpp:639]
UnrealEditor_GeometryCollectionEngine!UGeometryCollectionComponent::RegisterAndInitializePhysicsProxy() [D:\build\++UE5\Sync\Engine\Source\Runtime\Experimental\GeometryCollectionEngine\Private\GeometryCollection\GeometryCollectionComponent.cpp:2523]
UnrealEditor_GeometryCollectionEngine!UGeometryCollectionComponent::SetSimulatePhysics() [D:\build\++UE5\Sync\Engine\Source\Runtime\Experimental\GeometryCollectionEngine\Private\GeometryCollection\GeometryCollectionComponent.cpp:734]
UnrealEditor_Engine!UPrimitiveComponent::execSetSimulatePhysics() [D:\build\++UE5\Sync\Engine\Intermediate\Build\Win64\UnrealEditor\Inc\Engine\UHT\PrimitiveComponent.gen.cpp:2066]
UnrealEditor_CoreUObject!UFunction::Invoke() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:6455]
UnrealEditor_CoreUObject!UObject::CallFunction() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1118]
UnrealEditor_CoreUObject!UObject::ProcessContextOpcode() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:3084]
UnrealEditor_CoreUObject!ProcessLocalScriptFunction() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1188]
UnrealEditor_CoreUObject!ProcessScriptFunction<void (__cdecl*)(UObject *,FFrame &,void *)>() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1018]
UnrealEditor_CoreUObject!ProcessLocalFunction() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1258]
UnrealEditor_CoreUObject!ProcessLocalScriptFunction() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1188]
UnrealEditor_CoreUObject!UObject::ProcessInternal() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1285]
UnrealEditor_CoreUObject!UFunction::Invoke() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:6455]
UnrealEditor_CoreUObject!UObject::ProcessEvent() [D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:2116]
UnrealEditor_Engine!AActor::ProcessEvent() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:1055]
UnrealEditor_Engine!AActor::BeginPlay() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:4115]
UnrealEditor_Engine!AActor::DispatchBeginPlay() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:4055]
UnrealEditor_Engine!AActor::PostActorConstruction() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:3850]
UnrealEditor_Engine!AActor::FinishSpawning() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:3749]
UnrealEditor_Engine!AActor::PostSpawnInitialize() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\Actor.cpp:3687]
UnrealEditor_Engine!UWorld::SpawnActor() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\LevelActor.cpp:724]
UnrealEditor_Engine!UWorld::SpawnActor() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\LevelActor.cpp:440]
UnrealEditor_Kismet!FBlueprintEditor::UpdatePreviewActor() [D:\build\++UE5\Sync\Engine\Source\Editor\Kismet\Private\BlueprintEditor.cpp:10001]
UnrealEditor_Kismet!FSCSEditorViewportClient::ToggleIsSimulateEnabled() [D:\build\++UE5\Sync\Engine\Source\Editor\Kismet\Private\SCSEditorViewportClient.cpp:910]
UnrealEditor_Kismet!TBaseSPMethodDelegateInstance<0,SSCSEditorViewport,1,void __cdecl(void),FDefaultDelegateUserPolicy>::ExecuteIfSafe() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:312]
UnrealEditor_Slate!FUICommandList::ExecuteAction() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Commands\UICommandList.cpp:111]
UnrealEditor_Slate!SToolBarButtonBlock::OnClicked() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SToolBarButtonBlock.cpp:384]
UnrealEditor_Slate!SToolBarButtonBlock::OnCheckStateChanged() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SToolBarButtonBlock.cpp:410]
UnrealEditor_Slate!TBaseSPMethodDelegateInstance<0,SToolBarButtonBlock,1,void __cdecl(enum ECheckBoxState),FDefaultDelegateUserPolicy>::ExecuteIfSafe() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:312]
UnrealEditor_Slate!SCheckBox::ToggleCheckedState() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SCheckBox.cpp:391]
UnrealEditor_Slate!SCheckBox::OnMouseButtonUp() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Widgets\Input\SCheckBox.cpp:248]
UnrealEditor_Slate!<lambda_51e270ca99ea7ce852539efd04dd453f>::operator()() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5046]
UnrealEditor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_51e270ca99ea7ce852539efd04dd453f> >() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:412]
UnrealEditor_Slate!FSlateApplication::RoutePointerUpEvent() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5032]
UnrealEditor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5601]
UnrealEditor_Slate!FSlateApplication::OnMouseUp() [D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5566]
UnrealEditor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2219]
UnrealEditor_ApplicationCore!FWindowsApplication::DeferMessage() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2726]
UnrealEditor_ApplicationCore!FWindowsApplication::ProcessMessage() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:1895]
UnrealEditor_ApplicationCore!FWindowsApplication::AppWndProc() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:925]
user32
user32
InkObj
atlthunk
user32
user32
UnrealEditor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [D:\build\++UE5\Sync\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsPlatformApplicationMisc.cpp:142]
UnrealEditor!FEngineLoop::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5291]
UnrealEditor!GuardedMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:202]
UnrealEditor!GuardedMainWrapper() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:107]
UnrealEditor!LaunchWindowsStartup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:244]
UnrealEditor!WinMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:282]
UnrealEditor!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

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Fixed

Component	UE - Simulation - Physics - Destruction
Affects Versions	5.1
Target Fix	5.2

Fix Commit	24177800
Main Commit	24179994
Release Commit	24177800

Created	Dec 2, 2022
Resolved	Feb 13, 2023
Updated	Apr 29, 2023

View Jira Issue

UE-171743

Geometry Collection crashing BP Simulation when set to enable Physics via Event Graph

Geometry Collection crashing BP Simulation when set to enable Physics via Event Graph

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