This is a trending crash coming out of the 4.18 Previews. Users have not provided any descriptions of their actions when the crash occurred.
The callstack is similar to [Link Removed], which was just fixed in 4.18 with CL 3656408. However this specific crash does have some differences, and is still occurring in a later CL.
Source Context
658 for(int32 i=0; i<NumVerts; i++) 659 { 660 CollisionData->Vertices[i] = Model->VertexBuffer.Vertices[i].Position; 661 if (bCopyUVs) 662 { 663 CollisionData->UVs[0][i] = Model->VertexBuffer.Vertices[i].TexCoord; 664 } 665 } 666 667 for(int32 ElementIndex = 0;ElementIndex < Elements.Num();ElementIndex++) 668 { 669 FModelElement& Element = Elements[ElementIndex]; 670 FRawIndexBuffer16or32* IndexBuffer = Element.IndexBuffer; 671 672 ***** const int32 IndexBufferSize = IndexBuffer->Indices.Num(); 673 if (IndexBufferSize >= 0) 674 { 675 for (uint32 TriIdx = 0; TriIdx < Element.NumTriangles; TriIdx++) 676 { 677 FTriIndices Triangle; 678 679 Triangle.v0 = IndexBuffer->Indices[Element.FirstIndex + (TriIdx * 3) + 0]; 680 Triangle.v1 = IndexBuffer->Indices[Element.FirstIndex + (TriIdx * 3) + 1]; 681 Triangle.v2 = IndexBuffer->Indices[Element.FirstIndex + (TriIdx * 3) + 2]; 682 683 if (AreaThreshold >= 0.f) 684 { 685 const FVector V0 = Model->VertexBuffer.Vertices[Triangle.v0].Position; 686 const FVector V1 = Model->VertexBuffer.Vertices[Triangle.v1].Position; 687 const FVector V2 = Model->VertexBuffer.Vertices[Triangle.v2].Position;
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) UE4Editor_Engine!UModelComponent::GetPhysicsTriMeshData() [modelcomponent.cpp:673] UE4Editor_Engine!UBodySetup::GetCookInfo() [bodysetup.cpp:285] UE4Editor_Engine!FDerivedDataPhysXCooker::Build() [physderiveddata.cpp:93] UE4Editor_DerivedDataCache!FDerivedDataCache::FBuildAsyncWorker::DoWork() [deriveddatacache.cpp:186] UE4Editor_DerivedDataCache!FAsyncTask<FDerivedDataCache::FBuildAsyncWorker>::DoWork() [asyncwork.h:264] UE4Editor_DerivedDataCache!FAsyncTask<FDerivedDataCache::FBuildAsyncWorker>::Start() [asyncwork.h:252] UE4Editor_DerivedDataCache!FDerivedDataCache::GetSynchronous() [deriveddatacache.cpp:263] UE4Editor_Engine!UBodySetup::GetCookedData() [bodysetup.cpp:1455] UE4Editor_Engine!UBodySetup::CreatePhysicsMeshes() [bodysetup.cpp:396] UE4Editor_Engine!FInitBodiesHelper<1>::CreateShapesAndActors_PhysX() [bodyinstance.cpp:1439] UE4Editor_Engine!FInitBodiesHelper<1>::InitBodies_PhysX() [bodyinstance.cpp:1669] UE4Editor_Engine!FBodyInstance::InitBody() [bodyinstance.cpp:1749] UE4Editor_Engine!UPrimitiveComponent::OnCreatePhysicsState() [primitivecomponent.cpp:626] UE4Editor_Engine!UActorComponent::CreatePhysicsState() [actorcomponent.cpp:1206] UE4Editor_Engine!FComponentReregisterContextBase::ReRegister() [componentreregistercontext.h:68] UE4Editor_Engine!UActorComponent::ConsolidatedPostEditChange() [actorcomponent.cpp:653] UE4Editor_Engine!USceneComponent::PostEditChangeProperty() [scenecomponent.cpp:439] UE4Editor_Engine!UPrimitiveComponent::PostEditChangeProperty() [primitivecomponent.cpp:792] UE4Editor_CoreUObject!UObject::PostEditUndo() [obj.cpp:530] UE4Editor_UnrealEd!FTransaction::Apply() [editortransaction.cpp:506] UE4Editor_UnrealEd!UTransBuffer::Undo() [editortransaction.cpp:891] UE4Editor_UnrealEd!UEditorEngine::Exec_Transaction() [editorserver.cpp:5044] UE4Editor_UnrealEd!UEditorEngine::Exec() [editorserver.cpp:5491] UE4Editor_UnrealEd!UUnrealEdEngine::Exec() [unrealedsrv.cpp:672] UE4Editor_MainFrame!FMainFrameActionCallbacks::ExecuteExecCommand() [mainframeactions.cpp:1002] UE4Editor_MainFrame!TBaseStaticDelegateInstance<void __cdecl() [delegateinstancesimpl.h:1027] UE4Editor_Slate!FUICommandList::ConditionalProcessCommandBindings() [uicommandlist.cpp:216] UE4Editor_Slate!FUICommandList::ProcessCommandBindings() [uicommandlist.cpp:160] UE4Editor_MainFrame!FMainFrameActionCallbacks::OnUnhandledKeyDownEvent() [mainframeactions.cpp:212] UE4Editor_MainFrame!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<FReply() [tuple.h:497] UE4Editor_MainFrame!TBaseStaticDelegateInstance<FReply __cdecl() [delegateinstancesimpl.h:958] UE4Editor_Slate!TBaseDelegate<FReply,FKeyEvent const & __ptr64>::Execute() [delegatesignatureimpl.inl:537] UE4Editor_Slate!FSlateApplication::ProcessKeyDownEvent() [slateapplication.cpp:4843] UE4Editor_Slate!FSlateApplication::OnKeyDown() [slateapplication.cpp:4742] UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1560] UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2171] UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:888] UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [windowsapplication.cpp:725] user32!UserCallWinProcCheckWow() user32!DispatchMessageWorker() UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [windowsplatformapplicationmisc.cpp:129] UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3220] UE4Editor!GuardedMain() [launch.cpp:166] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:253] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
Why does the REMOVE method of map container remove elements have memory leaks?
How does TextureRenderTarget2D get TArray<uint8> type data?
What is the cause of the packaging error falling back to 'GameUserSettings' in ue5?
What is the difference between Camera and CineCamera?
How do I set a material as a post-processing material?
How to delete some elements correctly when deleting an array loop?
UMG RichText not appear image when packaged
How does TArray loop correctly remove elements in blueprints?
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-50656 in the post.
| 0 |
| Component | UE - Simulation - Physics |
|---|---|
| Affects Versions | 4.18 |
| Target Fix | 4.18 |
| Created | Oct 2, 2017 |
|---|---|
| Resolved | Oct 3, 2017 |
| Updated | Apr 27, 2018 |