Importing Mesh with "Import Animations" enabled crashes editor.

After importing a mesh with "Import Animations" enabled the editor crash's. Importing only the mesh does not crash the engine. Importing animation separately and assigning to Skeletal mesh on import crashes the editor.

MachineId:12576BA448507C1803B17ABB1CED802E
EpicAccountId:40b60e5aa629493e9f8d0f788b43478a

[Link Removed]

1. ) Download Animation and Skeletal Mesh
2. ) Open a clean blank project in 4.10
3. ) Import the "Beta.fbx" file and make sure Import Animations is enabled in import options.

Expected : Mesh and animations imported to UE4
Result : UE4 crashes after a few seconds of trying to import.

libfbxsdk!<Unknown>
libfbxsdk!<Unknown>
libfbxsdk!<Unknown>
UE4Editor_UnrealEd!ApplyUnroll() skeletalmeshedit.cpp:244
UE4Editor_UnrealEd!ApplyUnroll() skeletalmeshedit.cpp:246
UE4Editor_UnrealEd!ApplyUnroll() skeletalmeshedit.cpp:246
UE4Editor_UnrealEd!UnFbx::FFbxImporter::MergeAllLayerAnimation() skeletalmeshedit.cpp:263
UE4Editor_UnrealEd!UnFbx::FFbxImporter::ValidateAnimStack() skeletalmeshedit.cpp:638
UE4Editor_UnrealEd!UnFbx::FFbxImporter::ImportAnimations() skeletalmeshedit.cpp:506
UE4Editor_UnrealEd!UnFbx::FFbxImporter::SetupAnimationDataFromMesh() fbxskeletalmeshimport.cpp:1517
UE4Editor_UnrealEd!UFbxFactory::FactoryCreateBinary() fbxfactory.cpp:406
UE4Editor_UnrealEd!UFactory::StaticImportObject() factory.cpp:312
UE4Editor_AssetTools!FAssetTools::ImportAssets() assettools.cpp:918
UE4Editor_AssetTools!FAssetTools::ImportAssets() assettools.cpp:537
UE4Editor_ContentBrowser!SContentBrowser::ImportAsset() scontentbrowser.cpp:744
UE4Editor_ContentBrowser!SContentBrowser::HandleImportClicked() scontentbrowser.cpp:735
UE4Editor_ContentBrowser!TMemberFunctionCaller<SContentBrowser,FReply() delegateinstanceinterface_variadics.h:161
UE4Editor_ContentBrowser!TTupleImpl<TIntegerSequence<> >::ApplyAfter_ExplicitReturnType<FReply,TMemberFunctionCaller<SContentBrowser,FReply() tuple.h:113
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,FReply __cdecl() delegateinstancesimpl_variadics.inl:282
UE4Editor_Slate!TBaseDelegate<FReply>::Execute() delegatesignatureimpl_variadics.inl:440
UE4Editor_Slate!SButton::OnMouseButtonUp() sbutton.cpp:236
UE4Editor_Slate!<lambda_4ba5b0c116ad939f50a9b616659f063a>::operator() slateapplication.cpp:4276
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_4ba5b0c116ad939f50a9b616659f063a> >() slateapplication.cpp:214
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:4266
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:4663
UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:4641
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1404
UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:1709
UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:707
UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:629
user32!<Unknown>
user32!<Unknown>
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:884
UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2391
UE4Editor!GuardedMain() launch.cpp:142
UE4Editor!GuardedMainWrapper() launchwindows.cpp:126
UE4Editor!WinMain() launchwindows.cpp:200
UE4Editor!__scrt_common_main_seh() exe_common.inl:264
kernel32!<Unknown>
ntdll!<Unknown>

Crash on importing FBX animations