Crash on saving imported font

Unable to import new fonts into project

Click import, choose font (see font attached to this ticket). Save asset, crash. 100% repro.

> UE4Editor-Core.dll!FArchive::SerializeCompressed(void * V, __int64 Length, ECompressionFlags Flags, bool bTreatBufferAsFileReader, bool bUsePlatformBitWindow) Line 626 C++
UE4Editor-CoreUObject.dll!FUntypedBulkData::SerializeBulkData(FArchive & Ar, void * Data) Line 1164 C++
UE4Editor-CoreUObject.dll!UPackage::Save(UPackage * InOuter, UObject * Base, EObjectFlags TopLevelFlags, const wchar_t * Filename, FOutputDevice * Error, FLinkerLoad * Conform, bool bForceByteSwapping, bool bWarnOfLongFilename, unsigned int SaveFlags, const ITargetPlatform * TargetPlatform, const FDateTime & FinalTimeStamp, bool bSlowTask) Line 4743 C++
UE4Editor-UnrealEd.dll!UEditorEngine::Save(UPackage * InOuter, UObject * InBase, EObjectFlags TopLevelFlags, const wchar_t * Filename, FOutputDevice * Error, FLinkerLoad * Conform, bool bForceByteSwapping, bool bWarnOfLongFilename, unsigned int SaveFlags, const ITargetPlatform * TargetPlatform, const FDateTime & FinalTimeStamp, bool bSlowTask) Line 3949 C++
UE4Editor-UnrealEd.dll!UEditorEngine::SavePackage(UPackage * InOuter, UObject * InBase, EObjectFlags TopLevelFlags, const wchar_t * Filename, FOutputDevice * Error, FLinkerLoad * Conform, bool bForceByteSwapping, bool bWarnOfLongFilename, unsigned int SaveFlags, const ITargetPlatform * TargetPlatform, const FDateTime & FinalTimeStamp, bool bSlowTask) Line 4009 C++
UE4Editor-UnrealEd.dll!UEditorEngine::Exec_Obj(const wchar_t * Str, FOutputDevice & Ar) Line 4443 C++
UE4Editor-UnrealEd.dll!UEditorEngine::Exec(UWorld * InWorld, const wchar_t * Stream, FOutputDevice & Ar) Line 5537 C++
UE4Editor-UnrealEd.dll!UUnrealEdEngine::Exec(UWorld * InWorld, const wchar_t * Stream, FOutputDevice & Ar) Line 624 C++
UE4Editor-UnrealEd.dll!InternalSavePackage(UPackage * PackageToSave, bool & bOutPackageLocallyWritable, FOutputDevice & SaveOutput) Line 2682 C++
UE4Editor-UnrealEd.dll!FEditorFileUtils::PromptForCheckoutAndSave(const TArray<UPackage *,FDefaultAllocator> & InPackages, bool bCheckDirty, bool bPromptToSave, TArray<UPackage *,FDefaultAllocator> * OutFailedPackages, bool bAlreadyCheckedOut, bool bCanBeDeclined) Line 3212 C++
UE4Editor-UnrealEd.dll!FAssetEditorToolkit::SaveAsset_Execute() Line 523 C++
UE4Editor-UnrealEd.dll!TBaseSPMethodDelegateInstance<0,FAssetEditorToolkit,0,TTypeWrapper<void> __cdecl(void)>::Execute() Line 317 C++
UE4Editor-UnrealEd.dll!TBaseSPMethodDelegateInstance<0,FAssetEditorToolkit,0,void __cdecl(void)>::ExecuteIfSafe() Line 423 C++
UE4Editor-Slate.dll!FUICommandList::ExecuteAction(const TSharedRef<FUICommandInfo const ,0> InUICommandInfo) Line 92 C++
UE4Editor-Slate.dll!SToolBarButtonBlock::OnClicked() Line 300 C++
UE4Editor-Slate.dll!TMemberFunctionCaller<SToolBarButtonBlock,FReply (__cdecl SToolBarButtonBlock::*)(void) __ptr64>::operator()<>() Line 161 C++
UE4Editor-Slate.dll!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SToolBarButtonBlock,FReply (_cdecl SToolBarButtonBlock::)(void) __ptr64> >(TMemberFunctionCaller<SToolBarButtonBlock,FReply (_cdecl SToolBarButtonBlock::)(void)> && Func) Line 115 C++
UE4Editor-Slate.dll!TBaseSPMethodDelegateInstance<0,SToolBarButtonBlock,0,FReply __cdecl(void)>::Execute() Line 317 C++
UE4Editor-Slate.dll!TBaseDelegate<FReply>::Execute() Line 521 C++
UE4Editor-Slate.dll!SButton::OnMouseButtonUp(const FGeometry & MyGeometry, const FPointerEvent & MouseEvent) Line 278 C++
UE4Editor-Slate.dll!FSlateApplication::RoutePointerUpEvent::__l8::<lambda>(const FArrangedWidget & TargetWidget, const FPointerEvent & Event) Line 4890 C++
UE4Editor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,FReply <lambda>(const FArrangedWidget &, const FPointerEvent &) >(FSlateApplication * ThisApplication, FEventRouter::FToLeafmostPolicy RoutingPolicy, FPointerEvent EventCopy, const FSlateApplication::RoutePointerUpEvent::__l8::FReply <lambda>(const FArrangedWidget &, const FPointerEvent &) & Lambda) Line 215 C++
UE4Editor-Slate.dll!FSlateApplication::RoutePointerUpEvent(FWidgetPath & WidgetsUnderPointer, FPointerEvent & PointerEvent) Line 4879 C++
UE4Editor-Slate.dll!FSlateApplication::ProcessMouseButtonUpEvent(FPointerEvent & MouseEvent) Line 5337 C++
UE4Editor-Slate.dll!FSlateApplication::OnMouseUp(const EMouseButtons::Type Button, const FVector2D CursorPos) Line 5317 C++
UE4Editor-Core.dll!FWindowsApplication::ProcessDeferredMessage(const FDeferredWindowsMessage & DeferredMessage) Line 1584 C++
UE4Editor-Core.dll!FWindowsApplication::DeferMessage(TSharedPtr<FWindowsWindow,0> & NativeWindow, HWND__ * InHWnd, unsigned int InMessage, unsigned __int64 InWParam, __int64 InLParam, int MouseX, int MouseY, unsigned int RawInputFlags) Line 1930 C++
UE4Editor-Core.dll!FWindowsApplication::ProcessMessage(HWND__ * hwnd, unsigned int msg, unsigned __int64 wParam, __int64 lParam) Line 747 C++
UE4Editor-Core.dll!FWindowsApplication::AppWndProc(HWND__ * hwnd, unsigned int msg, unsigned __int64 wParam, __int64 lParam) Line 669 C++
[External Code]
UE4Editor-Core.dll!FWindowsPlatformMisc::PumpMessages(bool bFromMainLoop) Line 905 C++
UE4Editor.exe!FEngineLoop::Tick() Line 2788 C++
UE4Editor.exe!GuardedMain(const wchar_t * CmdLine, HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, int nCmdShow) Line 156 C++
UE4Editor.exe!WinMain(HINSTANCE__ * hInInstance, HINSTANCE__ * hPrevInstance, char * __formal, int nCmdShow) Line 191 C++
[External Code]