UE crashes when clicking "create destructible mesh"

Development Character & Animation
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1

Hi,

Everytime I click “create destructible mesh” on a mesh I created myself, I get the error message below and it crashes.
It works with other meshes.

Does that mean that it is something wrong with the mesh I created?

Error message:

Unknown exception - code 00000001 (first/second chance not available)

"Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.9\Engine\Source\Runtime\Core\Public\Containers\Ar

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\misc\outputdevice.cpp:354]
UE4Editor_Engine!UpdateRefToLocalMatrices() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\engine\private\skeletalrender.cpp:202]
UE4Editor_Engine!FDynamicSkelMeshObjectDataGPUSkin::FDynamicSkelMeshObjectDataGPUSkin() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\engine\private\skeletalrendergpuskin.cpp:1019]
UE4Editor_Engine!FSkeletalMeshObjectGPUSkin::Update() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\engine\private\skeletalrendergpuskin.cpp:192]
UE4Editor_Engine!USkinnedMeshComponent::CreateRenderState_Concurrent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\engine\private\components\skinnedmeshcomponent.cpp:303]
UE4Editor_Engine!UActorComponent::ExecuteRegisterEvents() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\engine\private\components\actorcomponent.cpp:1046]
UE4Editor_Engine!UActorComponent::RegisterComponentWithWorld() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\engine\private\components\actorcomponent.cpp:825]
UE4Editor_Engine!FPreviewScene::AddComponent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\engine\private\previewscene.cpp:97]
UE4Editor_DestructibleMeshEditor!SDestructibleMeshEditorViewport::SetPreviewMesh() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\editor\destructiblemesheditor\private\sdestructiblemesheditorviewport.cpp:596]
UE4Editor_DestructibleMeshEditor!SDestructibleMeshEditorViewport::Construct() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\editor\destructiblemesheditor\private\sdestructiblemesheditorviewport.cpp:491]
UE4Editor_DestructibleMeshEditor!TDecl::operator<<=() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slatecore\public\widgets\declarativesyntaxsupport.h:1330]
UE4Editor_DestructibleMeshEditor!FDestructibleMeshEditor::InitDestructibleMeshEditor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\editor\destructiblemesheditor\private\destructiblemesheditor.cpp:96]
UE4Editor_DestructibleMeshEditor!FDestructibleMeshEditorModule::CreateDestructibleMeshEditor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\editor\destructiblemesheditor\private\destructiblemesheditormodule.cpp:39]
UE4Editor_AssetTools!FAssetTypeActions_DestructibleMesh::OpenAssetEditor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\developer\assettools\private\assettypeactions\assettypeactions_destructiblemesh.cpp:26]
UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:303]
UE4Editor_AssetTools!FAssetTypeActions_StaticMesh::ExecuteCreateDestructibleMesh() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\developer\assettools\private\assettypeactions\assettypeactions_staticmesh.cpp:135]
UE4Editor_AssetTools!TBaseSPMethodDelegateInstance<0,FAssetTypeActions_StaticMesh,0,TTypeWrapper cdecl(void),TArray,FDefaultAllocator> >::Execute() [d:\buildfarm\buildmachine++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
UE4Editor_AssetTools!TBaseSPMethodDelegateInstance<0,FAssetTypeActions_StaticMesh,0,void cdecl(void),TArray,FDefaultAllocator> >::ExecuteIfSafe() [d:\buildfarm\buildmachine++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:388]
UE4Editor_Slate!SMenuEntryBlock::OnClicked() [d:\buildfarm\buildmachine++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:988]
UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() [d:\buildfarm\buildmachine++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:939]
UE4Editor_Slate!TMemberFunctionCaller::operator()<>() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegateinstanceinterface_variadics.h:161]
UE4Editor_Slate!TTupleImpl >::ApplyAfter_ExplicitReturnType >() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\tuple.h:113]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply cdecl(void)>::Execute() [d:\buildfarm\buildmachine++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
UE4Editor_Slate!TBaseDelegate::Execute() [d:\buildfarm\buildmachine++depot+ue4-releases+4.9\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:440]
UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:236]
UE4Editor_Slate!SMenuEntryButton::OnMouseButtonUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:361]
UE4Editor_Slate!::operator()() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4273]
UE4Editor_Slate!FEventRouter::Route >() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:214]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4276]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4660]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4638]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\windows\windowsapplication.cpp:1403]
UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\windows\windowsapplication.cpp:1708]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\windows\windowsapplication.cpp:706]
UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\windows\windowsapplication.cpp:628]
user32
user32
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:884]
UE4Editor!FEngineLoop::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\launchengineloop.cpp:2392]
UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.9\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]

2

Hello,

I’ve attempted to reproduce this issue, but have been unable to do so. Could you provide the asset that you are experiencing the crash with? It is possible that there is some issue with that particular mesh. Have you been able to reproduce this crash with more than one mesh?

3

Hello,

I am marking this topic as resolved for tracking purposes, as we have not heard from you in a few days. If this issue persists, feel free to respond to this thread. For any new issues, please create a new Answerhub topic.

Have a great day,

Sean Flint

4

I have the same problem, it crashes every time I click on Create Destructible Mesh. I’m using 4.20