Macでレベルを保存する際名前をつけるのに時間がかかると落ちる

Development World Creation
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1

ブランクのプロジェクトで空のレベルを作り、名前をつけて保存する際に、
すぐに保存を押せばそのまま保存できるのですが、その際に名前を変更しようと時間をかけてしまうと（一秒ほど）、エディタがクラッシュしてしまいます。これはバグでしょうか？　開発が全く出来ず困っています。名前を変更せずに時間が経過しても落ちます。
何か解決方法はないでしょうか。

UEは4.11で
iMac
OS X el capitan10.11.4
2.9GHz i5
16GBメモリ
Geforce GT 750M 1024MB

です。
エラーログは以下。

SEGV_MAPERR at 0x3

FGenericPlatformMisc::RaiseException(unsigned int) Address = 0x10c04131b (filename not found) [in UE4Editor-Core.dylib]
FOutputDeviceMacError::Serialize(wchar_t const*, ELogVerbosity::Type, FName const&) Address = 0x10c1d2ee6 (filename not found) [in UE4Editor-Core.dylib]
FOutputDevice::Logf(wchar_t const*, …) Address = 0x10c2c76f7 (filename not found) [in UE4Editor-Core.dylib]
FDebug::AssertFailed(char const*, char const*, int, wchar_t const*, …) Address = 0x10c2959c4 (filename not found) [in UE4Editor-Core.dylib]
FSlateFontMeasure::MeasureStringInternal(FString const&, int, int, FSlateFontInfo const&, bool, float, int, FSlateFontMeasure::ELastCharacterIndexFormat, int&) const Address = 0x113370ff2 (filename not found) [in UE4Editor-SlateCore.dylib]
FSlateFontMeasure::Measure(FString const&, int, int, FSlateFontInfo const&, bool, float) const Address = 0x113371299 (filename not found) [in UE4Editor-SlateCore.dylib]
SEditableText::Tick(FGeometry const&, double, float) Address = 0x112c98268 (filename not found) [in UE4Editor-Slate.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f961 (filename not found) [in UE4Editor-SlateCore.dylib]
SBox::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x112cf9f03 (filename not found) [in UE4Editor-Slate.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::PaintArrangedChildren(FPaintArgs const&, FArrangedChildren const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x1134560d4 (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113455de9 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SCompoundWidget::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113452830 (filename not found) [in UE4Editor-SlateCore.dylib]
SBorder::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x112cf73d7 (filename not found) [in UE4Editor-Slate.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::PaintArrangedChildren(FPaintArgs const&, FArrangedChildren const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x1134560d4 (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113455de9 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::PaintArrangedChildren(FPaintArgs const&, FArrangedChildren const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x1134560d4 (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113455de9 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::PaintArrangedChildren(FPaintArgs const&, FArrangedChildren const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x1134560d4 (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113455de9 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SCompoundWidget::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113452830 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::PaintArrangedChildren(FPaintArgs const&, FArrangedChildren const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x1134560d4 (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113455de9 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::PaintArrangedChildren(FPaintArgs const&, FArrangedChildren const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x1134560d4 (filename not found) [in UE4Editor-SlateCore.dylib]
SPanel::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113455de9 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SOverlay::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11345562d (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SCompoundWidget::OnPaint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113452830 (filename not found) [in UE4Editor-SlateCore.dylib]
SWidget::Paint(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x11339f9bf (filename not found) [in UE4Editor-SlateCore.dylib]
SWindow::PaintWindow(FPaintArgs const&, FGeometry const&, FSlateRect const&, FSlateWindowElementList&, int, FWidgetStyle const&, bool) const Address = 0x113467154 (filename not found) [in UE4Editor-SlateCore.dylib]
FSlateApplication::DrawWindowAndChildren(TSharedRef const&, FDrawWindowArgs&) Address = 0x1129e5437 (filename not found) [in UE4Editor-Slate.dylib]
FSlateApplication::PrivateDrawWindows(TSharedPtr) Address = 0x1129e3dd6 (filename not found) [in UE4Editor-Slate.dylib]
FSlateApplication::DrawWindows() Address = 0x1129e35df (filename not found) [in UE4Editor-Slate.dylib]
FSlateApplication::TickApplication(float) Address = 0x1129ebed6 (filename not found) [in UE4Editor-Slate.dylib]
FSlateApplication::AddModalWindow(TSharedRef, TSharedPtr, bool) Address = 0x1129f4173 (filename not found) [in UE4Editor-Slate.dylib]
FContentBrowserSingleton::SharedCreateAssetDialogWindow(TSharedRef const&, FSharedAssetDialogConfig const&, bool) const Address = 0x120885cc2 (filename not found) [in UE4Editor-ContentBrowser.dylib]
FContentBrowserSingleton::CreateModalSaveAssetDialog(FSaveAssetDialogConfig const&) Address = 0x1208877b2 (filename not found) [in UE4Editor-ContentBrowser.dylib]
OpenLevelSaveAsDialog(FString const&, FString const&, FString&) Address = 0x1143f88a6 (filename not found) [in UE4Editor-UnrealEd.dylib]
SaveAsImplementation(UWorld*, FString const&, bool) Address = 0x1143593de (filename not found) [in UE4Editor-UnrealEd.dylib]
FEditorFileUtils::SaveAs(ULevel*) Address = 0x114357977 (filename not found) [in UE4Editor-UnrealEd.dylib]
TBaseStaticDelegateInstance::ExecuteIfSafe() const Address = 0x1228d8f07 (filename not found) [in UE4Editor-LevelEditor.dylib]
FUICommandList::ExecuteAction(TSharedRef) const Address = 0x112a44b2d (filename not found) [in UE4Editor-Slate.dylib]
___ZN13FSlateMacMenu21ExecuteMenuItemActionERK10TSharedRefIK15FMenuEntryBlockL7ESPMode0EE_block_invoke Address = 0x112b2922c (filename not found) [in UE4Editor-Slate.dylib]
FCocoaRunLoopSource::Process(__CFString const*) Address = 0x10c1eff45 (filename not found) [in UE4Editor-Core.dylib]
-[FCocoaRunLoopSourceInfo perform] Address = 0x10c1aa546 (filename not found) [in UE4Editor-Core.dylib]
CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION Address = 0x7fff9414d881 (filename not found) [in CoreFoundation]
__CFRunLoopDoSources0 Address = 0x7fff9412cfbc (filename not found) [in CoreFoundation]
__CFRunLoopRun Address = 0x7fff9412c4df (filename not found) [in CoreFoundation]
CFRunLoopRunSpecific Address = 0x7fff9412bed8 (filename not found) [in CoreFoundation]
PerformBlockOnThread(FCocoaRunLoopSource&, void () block_pointer, NSArray*, NSString*, bool) Address = 0x10c1aab4a (filename not found) [in UE4Editor-Core.dylib]
FMacApplication::ProcessDeferredEvents(float) Address = 0x10c1b17c0 (filename not found) [in UE4Editor-Core.dylib]
FSlateApplication::TickPlatform(float) Address = 0x1129ea155 (filename not found) [in UE4Editor-Slate.dylib]
FSlateApplication::Tick() Address = 0x1129e9728 (filename not found) [in UE4Editor-Slate.dylib]
FEngineLoop::Tick() Address = 0x10bf80435 (filename not found) [in UE4Editor]
GuardedMain(wchar_t const*) Address = 0x10bf86f23 (filename not found) [in UE4Editor]
-[UE4AppDelegate runGameThread:] Address = 0x10bf968fc (filename not found) [in UE4Editor]
-[FCocoaGameThread main] Address = 0x10c1aa746 (filename not found) [in UE4Editor-Core.dylib]
Unknown() Address = 0x7fff94551d64 (filename not found) [in Foundation]
_pthread_body Address = 0x7fff90b8e99d (filename not found) [in libsystem_pthread.dylib]
_pthread_body Address = 0x7fff90b8e91a (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7fff90b8c351 (filename not found) [in libsystem_pthread.dylib]

2

こちらと同じ現象では？

ちなみに、アンリアルエンジンはLauncherからインストールしたものですか？
それともVisual Studioを使ってビルドしたもの？

3

ランチャーからインストールしたものです。urlではスタートアップ時にクラッシュするとのことですが、当方の環境ではエディタ自体は普通に立ち上がってくれています。

4

ログのエラー箇所が同じように見えたのですが、解決方法は試されましたか？

5

英語の読解力が拙く、ちゃんと読めているのか心配なのですが、
解決方法というのは、LPVDirectionalOcclusion.usfのシンボリックリンクを作る、ということでいいのでしょうか？
書かれてあるケースでは、case-sensitiveなファイルシステム環境ではロードに失敗する、ということなようですが、調べた所、当方の環境はcase-sensitiveではありませんでした。一応、LPVDirectionalOcclusionのファイル名をLpvDirectionalOcculusionに変えてみて実行しましたが、変化はありませんでした。やはり名前をつける際にクラッシュします。

念の為にファイルシステム情報のログを
Volume Name: Macintosh HD

Mounted: Yes
Mount Point: /

File System Personality: Journaled HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended (Journaled)
Journal: Journal size 81920 KB at offset 0x1b218000
Owners: Enabled

6

alweiさん！そうなのですね。
エンジンは再インストールしたのですが、URLに記載の解決法の、ランチャのインストールは試してなかったので、試してみようと思います。
ちなみに、UE4 4.12pre4では上記命名の際におけるクラッシュの症状は出なくなっておりました。が、時間が経つとメモリをどんどん消費しているようで、フリーズの症状がありました。問題の切り分けが難しいと感じてます。

7

おそらく、こちらの症状が最も近いような気がします。

ひとまずエンジンの再インストールは試されたでしょうか？Macはなにぶんバグレポートの件数も少ないので、こういう情報がオープンにならないとなかなか修正されません。一度全てインストール仕直してみることもおすすめいたします。