[CrashReport] UE4Editor-Core.dylib!<Unknown>

UE4Editor-Core.dylib!<Unknown>
UE4Editor-Core.dylib!<Unknown>
UE4Editor-Core.dylib!FCocoaRunLoopSource::Process()
UE4Editor-Core.dylib!<Unknown>
CoreFoundation!<Unknown>
CoreFoundation!<Unknown>
CoreFoundation!<Unknown>
CoreFoundation!<Unknown>
UE4Editor-Core.dylib!PerformBlockOnThread(FCocoaRunLoopSource&, void()
UE4Editor-Core.dylib!MainThreadCall(void()
UE4Editor-Core.dylib!FMacTextInputMethodSystem::DeactivateContext(TSharedRef<ITextInputMethodContext,()
UE4Editor-Slate.dylib!SEditableText::OnFocusLost()
UE4Editor-Slate.dylib!FSlateApplication::SetUserFocus()
UE4Editor-Slate.dylib!FSlateApplication::SetUserFocus(unsigned int, TSharedPtr<SWidget,()
UE4Editor-Slate.dylib!FSlateApplication::ProcessReply()
UE4Editor-Slate.dylib!FSlateApplication::SetUserFocus()
UE4Editor-Slate.dylib!FSlateApplication::SetAllUserFocus()
UE4Editor-SlateCore.dylib!SWindow::OnIsActiveChanged()
UE4Editor-Slate.dylib!FSlateApplication::ProcessWindowActivatedEvent()
UE4Editor-Slate.dylib!FSlateApplication::OnWindowActivationChanged(TSharedRef<FGenericWindow,()
UE4Editor-Core.dylib!FMacApplication::ProcessEvent()
UE4Editor-Core.dylib!FMacApplication::ProcessDeferredEvents()
UE4Editor-Slate.dylib!FSlateApplication::Tick()
UE4Editor-Slate.dylib!FSlateApplication::AddModalWindow(TSharedRef<SWindow, (ESPMode)0>, TSharedPtr<SWidget const,()
UE4Editor-UnrealEd.dylib!UEditorEngine::EditorAddModalWindow(TSharedRef<SWindow,()
UE4Editor-UnrealEd.dylib!UAnimMontageFactory::ConfigureProperties()
UE4Editor-ContentBrowser.dylib!SContentBrowser::NewAssetRequested()
UE4Editor-ContentBrowser.dylib!TBaseSPMethodDelegateInstance<false, SContentBrowser, (ESPMode)0, TTypeWrapper<void> (FString const&, TWeakObjectPtr<UClass, FWeakObjectPtr>)>::Execute()
UE4Editor-ContentBrowser.dylib!TBaseSPMethodDelegateInstance<false, SContentBrowser, (ESPMode)0, void (FString const&, TWeakObjectPtr<UClass, FWeakObjectPtr>)>::ExecuteIfSafe()
UE4Editor-ContentBrowser.dylib!FNewAssetOrClassContextMenu::ExecuteNewAsset()
UE4Editor-ContentBrowser.dylib!void TTupleImpl<TIntegerSequence<0u, 1u, 2u>, FString, TWeakObjectPtr<UClass, FWeakObjectPtr>, TBaseDelegate<void, FString const&, TWeakObjectPtr<UClass, FWeakObjectPtr> > >::ApplyAfter_ExplicitReturnType<void, void (* const&)(FString, TWeakObjectPtr<UClass, FWeakObjectPtr>, TBaseDelegate<void, FString const&, TWeakObjectPtr<UClass, FWeakObjectPtr> >)>(void (* const&&&)()
UE4Editor-ContentBrowser.dylib!TBaseStaticDelegateInstance<void (), FString, TWeakObjectPtr<UClass, FWeakObjectPtr>, TBaseDelegate<void, FString const&, TWeakObjectPtr<UClass, FWeakObjectPtr> > >::ExecuteIfSafe()
UE4Editor-Slate.dylib!SMenuEntryBlock::OnClicked()
UE4Editor-Slate.dylib!SMenuEntryBlock::OnMenuItemButtonClicked()
UE4Editor-Slate.dylib!TBaseSPMethodDelegateInstance<false, SMenuEntryBlock, (ESPMode)0, FReply ()>::Execute()
UE4Editor-Slate.dylib!SButton::OnMouseButtonUp()
UE4Editor-Slate.dylib!SMenuEntryButton::OnMouseButtonUp()
UE4Editor-Slate.dylib!FSlateApplication::RoutePointerUpEvent()
UE4Editor-Slate.dylib!FSlateApplication::ProcessMouseButtonUpEvent()
UE4Editor-Slate.dylib!FSlateApplication::OnMouseUp()
UE4Editor-Core.dylib!FMacApplication::ProcessEvent()
UE4Editor-Core.dylib!FMacApplication::ProcessDeferredEvents()
UE4Editor-Slate.dylib!FSlateApplication::Tick()
UE4Editor!FEngineLoop::Tick()
UE4Editor!GuardedMain()
UE4Editor!<Unknown>
UE4Editor-Core.dylib!<Unknown>
Foundation!<Unknown>
libsystem_pthread.dylib!<Unknown>
libsystem_pthread.dylib!<Unknown>
libsystem_pthread.dylib!<Unknown>