Unreal Engine Issues and Bug Tracker (UE-32630)

Questions & Answers

Description

Calling Add Angular Impulse on BeginPlay causes the editor to crash.

Workaround:
Adding a short (.01s) delay after BeginPlay prevents the crash.

Regression:
No, crash occurs in 4.11.2 as well.

Steps to Reproduce

Open UE4 Editor (with starter content)
Find 1M_Cube asset and right click->Create Destructible Mesh (1M_Cube_DM)
Add instanced of (1M_Cube_DM) to the level and set Simulate Physics to true
Add reference to 1M_Cube_DM to the level blueprint
Pull off of reference node and add AddAngularImpulse node
Add Event BeginPlay node and wire into AddAngularImpulse node
PIE

Result:
Editor will crash immediately after pressing PIE

Expected:
Destructible mesh has impulse applied once when the game starts

Callstack

MachineId:9FA88CA44B7C623122B0039D6C8BA1B0
EpicAccountId:67b2dfbf573f4ca89257ae6f4e56a46c

Access violation - code c0000005 (first/second chance not available)

PhysX3PROFILE_x64!physx::Scb::Body::addSpatialVelocity() [d:\ori.cohen_g6217_physics\engine\source\thirdparty\physx\physx-3.3\source\physx\src\buffering\scbbody.h:521]
PhysX3PROFILE_x64!physx::NpRigidBodyTemplate<physx::PxRigidDynamic>::addSpatialForce() [d:\ori.cohen_g6217_physics\engine\source\thirdparty\physx\physx-3.3\source\physx\src\nprigidbodytemplate.h:358]
PhysX3PROFILE_x64!physx::NpRigidDynamic::addTorque() [d:\ori.cohen_g6217_physics\engine\source\thirdparty\physx\physx-3.3\source\physx\src\nprigiddynamic.cpp:308]
UE4Editor_Engine!FPhysXSupport<1>::ExecuteOnPxRigidBodyReadWrite<<lambda_549e9d6e2928fdbd01e64e842129779b> >() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\public\physxpublic.h:247]
UE4Editor_Engine!FBodyInstance::AddAngularImpulse() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\physicsengine\bodyinstance.cpp:3808]
UE4Editor_Engine!UPrimitiveComponent::AddAngularImpulse() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\primitivecomponentphysics.cpp:228]
UE4Editor_Engine!UPrimitiveComponent::execAddAngularImpulse() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\classes\components\primitivecomponent.h:107]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:5077]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:641]
UE4Editor_CoreUObject!UObject::execVirtualFunction() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2166]
UE4Editor_CoreUObject!UObject::ProcessContextOpcode() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2060]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:866]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:765]
UE4Editor_CoreUObject!UObject::execVirtualFunction() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2166]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:866]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:5077]
UE4Editor_CoreUObject!UObject::ProcessEvent() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1245]
UE4Editor_Engine!AActor::ProcessEvent() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\actor.cpp:639]
UE4Editor_Engine!AActor::BeginPlay() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\actor.cpp:2994]
UE4Editor_Engine!AWorldSettings::NotifyBeginPlay() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\worldsettings.cpp:164]
UE4Editor_Engine!AGameMode::HandleMatchHasStarted() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\gamemode.cpp:623]
UE4Editor_Engine!AGameMode::SetMatchState() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\gamemode.cpp:733]
UE4Editor_Engine!AGameMode::StartMatch() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\gamemode.cpp:600]
UE4Editor_Engine!UWorld::BeginPlay() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\world.cpp:3218]
UE4Editor_Engine!UGameInstance::StartPIEGameInstance() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\gameinstance.cpp:293]
UE4Editor_UnrealEd!UEditorEngine::CreatePIEGameInstance() [d:\build\++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\playlevel.cpp:3250]
UE4Editor_UnrealEd!UEditorEngine::PlayInEditor() [d:\build\++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\playlevel.cpp:2346]
UE4Editor_UnrealEd!UEditorEngine::StartQueuedPlayMapRequest() [d:\build\++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\playlevel.cpp:1103]
UE4Editor_UnrealEd!UEditorEngine::Tick() [d:\build\++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:1246]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\build\++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\unrealedengine.cpp:368]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2775]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launch.cpp:148]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build\++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll

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Launcher Black Screen

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Fixed

Component	UE - Simulation - Physics
Affects Versions	4.12.4
Target Fix	4.13

Fix Commit	3068733
Main Commit	3092051
Release Commit	3068733

Created	Jun 29, 2016
Resolved	Jul 28, 2016
Updated	Apr 27, 2018

View Jira Issue

UE-32630

Adding Angular Impulse on Begin Play causes a Crash

Adding Angular Impulse on Begin Play causes a Crash

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