Editor crashes when importing alembic asset

Editor crashes when importing Alembic material asset.

The editor will crash once selecting the asset in Windows explorer, before the Import Options window appears.

When testing this, we had an average rate of 50% of our machines, with very similar specs, but anyone that receives the crash will crash 100% of the time.

Crash Reporter Link - [Link Removed]

1. Open QAGame in the latest 4.13 Binary engine
2. Right click in the Content Browser and select "Import"
3. Navigate to \Engine\Content\NotForLicensees\QA\Import_Test_Assets\AlembicAssets in your 4.13 source workspace
4. Select MaterialImportTest.abc and select Open

UE4Editor_AlembicImporter!UAlembicImportFactory::ShowImportOptionsWindow()
UE4Editor_AlembicImporter!UAlembicImportFactory::FactoryCreateBinary()
UE4Editor_UnrealEd!UFactory::FactoryCreateFile() factory.cpp:72
UE4Editor_UnrealEd!UFactory::ImportObject() factory.cpp:143
UE4Editor_AssetTools!FAssetTools::ImportAssets() assettools.cpp:971
UE4Editor_AssetTools!FAssetTools::ImportAssets() assettools.cpp:571
UE4Editor_ContentBrowser!SContentBrowser::ImportAsset() scontentbrowser.cpp:781
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,TTypeWrapper<void> __cdecl() delegateinstancesimpl.h:317
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void __cdecl() delegateinstancesimpl.h:424
UE4Editor_ContentBrowser!FNewAssetOrClassContextMenu::ExecuteImportAsset() newassetorclasscontextmenu.cpp:403
UE4Editor_ContentBrowser!TTupleImpl<TIntegerSequence<unsigned int,0,1>,TBaseDelegate<void,FString const & __ptr64>,FString>::ApplyAfter<void() tuple.h:88
UE4Editor_ContentBrowser!TBaseStaticDelegateInstance<void __cdecl() delegateinstancesimpl.h:1017
UE4Editor_Slate!SMenuEntryBlock::OnClicked() smenuentryblock.cpp:1036
UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() smenuentryblock.cpp:987
UE4Editor_Slate!TMemberFunctionCaller<SMenuEntryBlock,FReply() delegateinstanceinterface.h:161
UE4Editor_Slate!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SMenuEntryBlock,FReply() tuple.h:115
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl() delegateinstancesimpl.h:317
UE4Editor_Slate!TBaseDelegate<FReply>::Execute() delegatesignatureimpl.inl:521
UE4Editor_Slate!SButton::OnMouseButtonUp() sbutton.cpp:278
UE4Editor_Slate!SMenuEntryButton::OnMouseButtonUp() smenuentryblock.cpp:385
UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:4901
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:215
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:4890
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5348
UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5328
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1584
UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:1930
UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:747
UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:669
user32!<Unknown>
user32!<Unknown>
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:905
UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2788
UE4Editor!GuardedMain() launch.cpp:156
UE4Editor!GuardedMainWrapper() launchwindows.cpp:126
UE4Editor!WinMain() launchwindows.cpp:202
UE4Editor!__scrt_common_main_seh() exe_common.inl:264
kernel32!<Unknown>
ntdll!<Unknown>