Why does UE4 keep crashing?

Development Platform & Builds
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1

This Engine has crashed 5 times on me now when I’ve tried to import my character mesh and its animations. Included below is the crash log. I got the character model from http://www.Mixamo.com and I even tried importing this on a brand new 3rd person project and it crashed on that as well as my current project.

MachineId:6F282DCE418930666ADEFA8A5738988B
EpicAccountId:0f85b0518421499a95ea2ed8b813b87d

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

""

libfbxsdk
libfbxsdk
libfbxsdk
UE4Editor_UnrealEd!ApplyUnroll() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\skeletalmeshedit.cpp:244]
UE4Editor_UnrealEd!ApplyUnroll() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\skeletalmeshedit.cpp:246]
UE4Editor_UnrealEd!ApplyUnroll() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\skeletalmeshedit.cpp:246]
UE4Editor_UnrealEd!UnFbx::FFbxImporter::MergeAllLayerAnimation() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\skeletalmeshedit.cpp:263]
UE4Editor_UnrealEd!UnFbx::FFbxImporter::ValidateAnimStack() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\skeletalmeshedit.cpp:638]
UE4Editor_UnrealEd!UnFbx::FFbxImporter::ImportAnimations() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\skeletalmeshedit.cpp:506]
UE4Editor_UnrealEd!UnFbx::FFbxImporter::SetupAnimationDataFromMesh() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\fbx\fbxskeletalmeshimport.cpp:1526]
UE4Editor_UnrealEd!UFbxFactory::FactoryCreateBinary() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\fbx\fbxfactory.cpp:406]
UE4Editor_UnrealEd!UFactory::StaticImportObject() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\factories\factory.cpp:312]
UE4Editor_AssetTools!FAssetTools::ImportAssets() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\developer\assettools\private\assettools.cpp:918]
UE4Editor_AssetTools!FAssetTools::ImportAssets() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\developer\assettools\private\assettools.cpp:537]
UE4Editor_ContentBrowser!SContentBrowser::ImportAsset() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\contentbrowser\private\scontentbrowser.cpp:744]
UE4Editor_ContentBrowser!SContentBrowser::HandleImportClicked() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\contentbrowser\private\scontentbrowser.cpp:735]
UE4Editor_ContentBrowser!TMemberFunctionCaller<SContentBrowser,FReply (__cdecl SContentBrowser::*)(void) __ptr64>::operator()<>() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstanceinterface_variadics.h:161]
UE4Editor_ContentBrowser!TTupleImpl<TIntegerSequence<> >::ApplyAfter_ExplicitReturnType<FReply,TMemberFunctionCaller<SContentBrowser,FReply (__cdecl SContentBrowser::*)(void) __ptr64> >() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\tuple.h:113]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,FReply __cdecl(void)>::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
UE4Editor_Slate!TBaseDelegate<FReply>::Execute() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:440]
UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:236]
UE4Editor_Slate!<lambda_4ba5b0c116ad939f50a9b616659f063a>::operator()() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4276]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_4ba5b0c116ad939f50a9b616659f063a> >() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:214]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4266]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4663]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4641]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:1416]
UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:1721]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:719]
UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsapplication.cpp:641]
user32
user32
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:884]
UE4Editor!FEngineLoop::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launchengineloop.cpp:2391]
UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\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
2

I too have had issues importing FBX files from Mixamo. I’d suggest importing the FBX straight from the Mixamo site into your DCC, and re-export in an older FBX format (I think its FBX2016 thats causing issues, at least at my end).

3

Hello The_Mec_666 -

This issue has been corrected in 4.11. You logs and reported crashes are all coming from 4.10 in which it is a known issue reported as UE-22956.

Thank You

Eric Ketchum

4

how do I go about obtaining 4.11?

5

Hello -

You will need to open the Launcher and in the Library click on Add Version and 4.11 Preview 6 is in the drop down of versions.

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