Unreal Engine Issues and Bug Tracker (UE-63104)

Description

When a Skeletal Mesh isn't assigned, enabling Per Poly Collision on the Skeletal Mesh Component causes the Editor to crash.

This issue was reported and tested in 4.20.1 (CL-4233996). This issue was reproduced in 4.19.2 (CL-4033788) and Main 4.21 (CL-4299102)

Steps to Reproduce

Open the UE4 Editor and create a blank project
Create a Blueprint Actor
Add a Skeletal Mesh component to the Default Scene Root
Select the Skeletal Mesh component
Set the Collision Preset to Custom
Set the Collision Enabled to Query
Enable Per Poly Collision

Results: Editor crashes

Expected: Editor doesn't crash

Callstack

[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc8c5950d8 KERNELBASE.dll!UnknownFunction []
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc753d6850 UE4Editor-ApplicationCore.dll!FWindowsErrorOutputDevice::Serialize() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowserroroutputdevice.cpp:65]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3ed662ec UE4Editor-Core.dll!FOutputDevice::LogfImpl() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\outputdevice.cpp:70]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3ecf51cb UE4Editor-Core.dll!FDebug::AssertFailed() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:425]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc40c1298b UE4Editor-Engine.dll!USkeletalMeshComponent::CreateBodySetup() [d:\build\++ue4\sync\engine\source\runtime\engine\private\skeletalmeshcomponentphysics.cpp:99]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc40c4904e UE4Editor-Engine.dll!USkeletalMeshComponent::OnCreatePhysicsState() [d:\build\++ue4\sync\engine\source\runtime\engine\private\skeletalmeshcomponentphysics.cpp:1335]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc4009f84f UE4Editor-Engine.dll!UActorComponent::CreatePhysicsState() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\actorcomponent.cpp:1212]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3ff58d1d UE4Editor-Engine.dll!FComponentReregisterContextBase::ReRegister() [d:\build\++ue4\sync\engine\source\runtime\engine\public\componentreregistercontext.h:68]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc4009b671 UE4Editor-Engine.dll!UActorComponent::ConsolidatedPostEditChange() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\actorcomponent.cpp:653]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc401eff37 UE4Editor-Engine.dll!USceneComponent::PostEditChangeProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:510]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc4018ce50 UE4Editor-Engine.dll!UPrimitiveComponent::PostEditChangeProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\primitivecomponent.cpp:902]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc401f0113 UE4Editor-Engine.dll!USkeletalMeshComponent::PostEditChangeProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\skeletalmeshcomponent.cpp:838]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3f7cca23 UE4Editor-CoreUObject.dll!UObject::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:444]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc400cbbc6 UE4Editor-Engine.dll!UActorComponent::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\actorcomponent.cpp:699]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc4018b350 UE4Editor-Engine.dll!UPrimitiveComponent::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\primitivecomponent.cpp:1036]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc4018b0d8 UE4Editor-Engine.dll!UMeshComponent::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\meshcomponent.cpp:113]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3f7cfe9c UE4Editor-CoreUObject.dll!UObject::PropagatePostEditChange() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:518]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3f7cbe68 UE4Editor-CoreUObject.dll!UObject::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:411]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc400cbbc6 UE4Editor-Engine.dll!UActorComponent::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\actorcomponent.cpp:699]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc4018b350 UE4Editor-Engine.dll!UPrimitiveComponent::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\primitivecomponent.cpp:1036]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc4018b0d8 UE4Editor-Engine.dll!UMeshComponent::PostEditChangeChainProperty() [d:\build\++ue4\sync\engine\source\runtime\engine\private\components\meshcomponent.cpp:113]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc39476976 UE4Editor-PropertyEditor.dll!FPropertyNode::NotifyPostChange() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertynode.cpp:2122]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3946a669 UE4Editor-PropertyEditor.dll!FPropertyValueImpl::ImportText() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:545]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3946abfd UE4Editor-PropertyEditor.dll!FPropertyValueImpl::ImportText() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:333]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3946a89e UE4Editor-PropertyEditor.dll!FPropertyValueImpl::ImportText() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:242]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc394b3cca UE4Editor-PropertyEditor.dll!FPropertyHandleBool::SetValue() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:3426]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc395682fe UE4Editor-PropertyEditor.dll!SPropertyEditorBool::OnCheckStateChanged() [d:\build\++ue4\sync\engine\source\editor\propertyeditor\private\userinterface\propertyeditor\spropertyeditorbool.cpp:79]
[2018.08.20-18.58.49:387][236]LogWindows: Error: [Callstack] 0x00007ffc3954a8b9 UE4Editor-PropertyEditor.dll!TBaseSPMethodDelegateInstance<0,SPropertyEditorBool,0,void __cdecl(enum ECheckBoxState)>::ExecuteIfSafe() [d:\build\++ue4\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:345]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc3e489ddd UE4Editor-Slate.dll!SCheckBox::OnMouseButtonUp() [d:\build\++ue4\sync\engine\source\runtime\slate\private\widgets\input\scheckbox.cpp:190]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc3e2794c5 UE4Editor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_1002768c627006711ef2f351a87ec0e7> >() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:268]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc3e311db2 UE4Editor-Slate.dll!FSlateApplication::RoutePointerUpEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5472]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc3e2f7c7a UE4Editor-Slate.dll!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5979]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc3e2eb25c UE4Editor-Slate.dll!FSlateApplication::OnMouseUp() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5959]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc753cd1c7 UE4Editor-ApplicationCore.dll!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1736]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc753c0270 UE4Editor-ApplicationCore.dll!FWindowsApplication::DeferMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2182]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc753cf4c5 UE4Editor-ApplicationCore.dll!FWindowsApplication::ProcessMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:895]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc753bc209 UE4Editor-ApplicationCore.dll!FWindowsApplication::AppWndProc() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:732]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc8dc8b85d USER32.dll!UnknownFunction []
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc8dc8b1ef USER32.dll!UnknownFunction []
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc753d0646 UE4Editor-ApplicationCore.dll!FWindowsPlatformApplicationMisc::PumpMessages() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:129]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ff79f1b54e5 UE4Editor.exe!FEngineLoop::Tick() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3417]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ff79f1c5b3c UE4Editor.exe!GuardedMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launch.cpp:166]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ff79f1c5bba UE4Editor.exe!GuardedMainWrapper() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:144]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ff79f1d3dac UE4Editor.exe!WinMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:223]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ff79f1d5aaa UE4Editor.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283]
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc8d6d1fe4 KERNEL32.DLL!UnknownFunction []
[2018.08.20-18.58.49:388][236]LogWindows: Error: [Callstack] 0x00007ffc9006cb31 ntdll.dll!UnknownFunction []

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Fixed

Component	UE - Simulation - Physics
Affects Versions	4.19.2, 4.20.1, 4.21
Target Fix	4.21

Fix Commit	4435596
Main Commit	4450599
Release Commit	4435596

Created	Aug 20, 2018
Resolved	Oct 8, 2018
Updated	Oct 29, 2018

Pull Requests

5159 - projectgheist

View Jira Issue

UE-63104

Enabling Skeletal Mesh 'Per Poly Collision' crashes the Editor

Enabling Skeletal Mesh 'Per Poly Collision' crashes the Editor

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