Crash/Fatal error importing FBX Animation

Hi all,

Im running UE4.10.1 and am trying to import an animation that i got from the mixamo store to a skeleton that i got from the same site. UE4 crashes after I select the import settings and press import (Select skeleton etc). This only occurs on some animations and i just wish to know how to fix/get around this issue. There isnt anything inparticular holding me to 4.10.1 so i can roll back but figured it is worth looking into first.

I can provide some sample FBX files if need be.

Here is the crash dump.

MachineId:FCE34B654615EBADB529E182AE25EB96
EpicAccountId:

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!UEditorEngine::ImportFbxAnimation() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\skeletalmeshedit.cpp:74]
UE4Editor_UnrealEd!UFbxFactory::FactoryCreateBinary() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\fbx\fbxfactory.cpp:469]
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!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,TTypeWrapper cdecl(FString const & ptr64)>::Execute() [d:\buildfarm\buildmachine++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void cdecl(FString const & ptr64)>::ExecuteIfSafe() [d:\buildfarm\buildmachine++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:388]
UE4Editor_ContentBrowser!FNewAssetOrClassContextMenu::ExecuteImportAsset() [d:\buildfarm\buildmachine
++depot+ue4-releases+4.10\engine\source\editor\contentbrowser\private\newassetorclasscontextmenu.cpp:400]
UE4Editor_ContentBrowser!TTupleImpl,TBaseDelegate,FString>::ApplyAfter_ExplicitReturnType,FString)>() [d:\buildfarm\buildmachine
++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\tuple.h:79]
UE4Editor_ContentBrowser!TBaseStaticDelegateInstance,FString>::ExecuteIfSafe() [d:\buildfarm\buildmachine
++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:921]
UE4Editor_Slate!SMenuEntryBlock::OnClicked() [d:\buildfarm\buildmachine
++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:976]
UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() [d:\buildfarm\buildmachine
++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:927]
UE4Editor_Slate!TMemberFunctionCaller::operator()<>() [d:\buildfarm\buildmachine
++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstanceinterface_variadics.h:161]
UE4Editor_Slate!TTupleImpl >::ApplyAfter_ExplicitReturnType >() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\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+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:282]
UE4Editor_Slate!TBaseDelegate::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!SMenuEntryButton::OnMouseButtonUp() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:361]
UE4Editor_Slate!::operator()() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4276]
UE4Editor_Slate!FEventRouter::Route >() [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

There is a bug in 4.10 that I am not entirely sure was fixed in 4.10.1 when importing most FBX.
To go around this problem, create a blank project in any other engine version (eg.: 4.9.2), import your animations and meshes into it and migrate the content from there to your 4.10 project and you’re done.

Good luck!

Thanks ill try that when i get home and let you know how i go. Gunna have to install the older version seperately :frowning:

Hello -

Niktsuki is correct, we are tracking this issue as UE-22956 and are currently investigating a fix to this issue.

Thank You for your report, I have added your information to the issue tracking and will keep you informed as we continue our work.

Eric Ketchum

Thanks that worked.