ビルドするとクラッシュする。

お世話になります。

壊れたデータができてしまって困っています。
ビルドをするともれなく落ちてしまいます。

下記に添付したログでクラッシュ理由がわかる方が
いらっしゃればご教授頂けませんでしょうか?

宜しくお願い致します。

環境は OSX 10.9.3 UEは4.2.1になります。

SIGSEGV: invalid attempt to access memory at address 0x3

EngineCrashHandler(FGenericCrashContext const&) [in UE4Editor) + 15
, line 63319] [in UE4Editor]
PlatformCrashHandler(int, __siginfo*, void*) [in UE4Editor-Core.dylib) + 95
, line 63319] [in UE4Editor-Core.dylib]
_sigtramp() Address = 0x9915a5aa (filename not found) [in libsystem_platform.dylib]

FMsg::Logf(char const*, int, FName const&, ELogVerbosity::Type, wchar_t const*, ...) Address = 0xa5c1f37  (filename not found) [in UE4Editor-Core.dylib]
FDebug::AssertFailed(char const*, char const*, int, wchar_t const*, ...) Address = 0xa5c16ca  (filename not found) [in UE4Editor-Core.dylib]
FDetailCustomBuilderRow::OnGenerateChildren(TArray<TSharedRef<IDetailTreeNode, (ESPMode::Type)0>, FDefaultAllocator>&) Address = 0x13c9ebfa (filename not found) [in UE4Editor-PropertyEditor.dylib]
FDetailItemNode::GenerateChildren(bool) Address = 0x13c9ea5b (filename not found) [in UE4Editor-PropertyEditor.dylib]
TBaseSPMethodDelegateInstance_NoParams_OneVar<FDetailItemNode, void, bool, (ESPMode::Type)0>::Execute() const Address = 0x13d9740d (filename not found) [in UE4Editor-PropertyEditor.dylib]
TBaseSPMethodDelegateInstance_NoParams_OneVar<FDetailItemNode, void, bool, (ESPMode::Type)0>::ExecuteIfSafe() const Address = 0x13d974b3 (filename not found) [in UE4Editor-PropertyEditor.dylib]
TBaseSPMethodDelegateInstance_NoParams<FLightmapCustomNodeBuilder, void, (ESPMode::Type)0>::Execute() const Address = 0x2ee7d588 (filename not found) [in UE4Editor-DetailCustomizations.dylib]
TBaseSPMethodDelegateInstance_NoParams<FLightmapCustomNodeBuilder, void, (ESPMode::Type)0>::ExecuteIfSafe() const Address = 0x2ee7d623 (filename not found) [in UE4Editor-DetailCustomizations.dylib]
FStaticLightingManager::ProcessLightingData(bool) Address = 0x1088dce8 (filename not found) [in UE4Editor-UnrealEd.dylib]
FStaticLightingSystem::UpdateLightingBuild() Address = 0x1089322e (filename not found) [in UE4Editor-UnrealEd.dylib]
UEditorEngine::UpdateBuildLighting() Address = 0x1089cafc (filename not found) [in UE4Editor-UnrealEd.dylib]
UUnrealEdEngine::Tick(float, bool) Address = 0x10491332 (filename not found) [in UE4Editor-UnrealEd.dylib]
FEngineLoop::Tick() Address = 0xa29b1dd  (filename not found) [in UE4Editor]
GuardedMain(wchar_t const*) Address = 0xa29d2e1  (filename not found) [in UE4Editor]
-[UE4AppDelegate applicationDidFinishLaunching:] Address = 0xa2a3630  (filename not found) [in UE4Editor]
__CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__() Address = 0x958a7e0c (filename not found) [in CoreFoundation]
_CFXNotificationPost() Address = 0x9579b8dd (filename not found) [in CoreFoundation]
-[NSNotificationCenter postNotificationName:object:userInfo:] Address = 0x96f367ba (filename not found) [in Foundation]
-[NSApplication _postDidFinishNotification] Address = 0x9381eb89 (filename not found) [in AppKit]
-[NSApplication _sendFinishLaunchingNotification] Address = 0x9381e8bc (filename not found) [in AppKit]
-[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] Address = 0x9381b7a6 (filename not found) [in AppKit]
-[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] Address = 0x9381b1fb (filename not found) [in AppKit]
-[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] Address = 0x96f54f0a (filename not found) [in Foundation]
_NSAppleEventManagerGenericHandler() Address = 0x96f54d7d (filename not found) [in Foundation]
aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) Address = 0x98babe1f (filename not found) [in AE]
dispatchEventAndSendReply(AEDesc const*, AEDesc*) Address = 0x98babc32 (filename not found) [in AE]
aeProcessAppleEvent() Address = 0x98babb36 (filename not found) [in AE]
AEProcessAppleEvent() Address = 0x943d5161 (filename not found) [in HIToolbox]
_DPSNextEvent() Address = 0x938170d6 (filename not found) [in AppKit]
-[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] Address = 0x938168bb (filename not found) [in AppKit]
-[NSApplication run] Address = 0x9380a9bc (filename not found) [in AppKit]
NSApplicationMain() Address = 0x937f57a3 (filename not found) [in AppKit]
tchar_main(int, wchar_t**) Address = 0xa2a3e9b  (filename not found) [in UE4Editor]
main() Address = 0xa2a3904  (filename not found) [in UE4Editor]
start() Address = 0x8dcf85fd (filename not found) [in libdyld.dylib]

こちらの投稿については、問題の発生するエンジンバージョンがかなり前のものであることと、その後数日間の間に投稿が無かったことから追跡目的で解決済みとしました。この問題が最近のバージョンで再発するようでしたら、お気軽にご連絡下さい。
よろしくおねがいします。