Description

This is an infrequent Mac crash in 4.18.1. Users have not provided any descriptions.

Callstack from Log

2017.11.27-02.08.07:839][947]LogMaterial: Missing cached shader map for material FLightmassMaterialRenderer body, compiling. 
[2017.11.27-02.08.07:909][948]LogMaterial: Missing cached shader map for material FLightmassMaterialRenderer WorldGridMaterial, compiling. Is special engine material.
[2017.11.27-02.08.07:919][948]LogMaterial: Missing cached shader map for material FLightmassMaterialRenderer WorldGridMaterial, compiling. Is special engine material.
[2017.11.27-02.08.19:736][949]LogMac: Error: appError called: Assertion failed: IsValid() [File:Runtime/Core/Public/Templates/SharedPointer.h] [Line: 793] 


[2017.11.27-02.08.20:036][949]LogMac: === Critical error: ===
SIGSEGV: invalid attempt to access memory at address 0x3

[2017.11.27-02.08.20:036][949]LogMac: 0x08cc099b UE4Editor-Core.dylib!FGenericPlatformMisc::RaiseException(unsigned int)   [UnknownFile]) 
0x0ded8c09 UE4Editor-ApplicationCore.dylib!FMacErrorOutputDevice::Serialize(wchar_t const*, ELogVerbosity::Type, FName const&)   [UnknownFile]) 
0x08f6ec9d UE4Editor-Core.dylib!FOutputDevice::Logf(wchar_t const*, ...)   [UnknownFile]) 
0x08ee4efb UE4Editor-Core.dylib!FDebug::AssertFailed(char const*, char const*, int, wchar_t const*, ...)   [UnknownFile]) 
0x0decb625 UE4Editor-ApplicationCore.dylib!invocation function for block in FMacApplication::DeferEvent(NSObject*)   [UnknownFile]) 
0x08ecdd60 UE4Editor-Core.dylib!invocation function for block in PerformBlockOnThread(FCocoaRunLoopSource&, void () block_pointer, NSArray*, NSString*, bool)   [UnknownFile]) 
0x08e6aa68 UE4Editor-Core.dylib!FCocoaRunLoopSource::Process(__CFString const*)   [UnknownFile]) 
0x08e6a519 UE4Editor-Core.dylib!-[FCocoaRunLoopSourceInfo perform]   [UnknownFile]) 
0x36439821 CoreFoundation!__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__()   [UnknownFile]) 
0x364f34cc CoreFoundation!__CFRunLoopDoSource0()   [UnknownFile]) 
0x3641c2c0 CoreFoundation!__CFRunLoopDoSources0()   [UnknownFile]) 
0x3641b73d CoreFoundation!__CFRunLoopRun()   [UnknownFile]) 
0x3641afa3 CoreFoundation!CFRunLoopRunSpecific()   [UnknownFile]) 
0x08e6b3ea UE4Editor-Core.dylib!PerformBlockOnThread(FCocoaRunLoopSource&, void () block_pointer, NSArray*, NSString*, bool)   [UnknownFile]) 
0x08e6b101 UE4Editor-Core.dylib!MainThreadCall(void () block_pointer, NSString*, bool)   [UnknownFile]) 
0x0dee53c6 UE4Editor-ApplicationCore.dylib!FMacWindow::BringToFront(bool)   [UnknownFile]) 
0x0e14141d UE4Editor-Slate.dylib!FSlateNotificationManager::ForceNotificationsInFront(TSharedRef<SWindow, (ESPMode)0>)   [UnknownFile]) 
0x0dfdc255 UE4Editor-Slate.dylib!FSlateApplication::ProcessWindowActivatedEvent(FWindowActivateEvent const&)   [UnknownFile]) 
0x0dfdb80d UE4Editor-Slate.dylib!FSlateApplication::OnWindowActivationChanged(TSharedRef<FGenericWindow, (ESPMode)0> const&, EWindowActivation)   [UnknownFile]) 
0x0ded0bec UE4Editor-ApplicationCore.dylib!FMacApplication::OnWindowActivationChanged(TSharedRef<FMacWindow, (ESPMode)0> const&, EWindowActivation)   [UnknownFile]) 
0x0ded1d6f UE4Editor-ApplicationCore.dylib!FMacApplication::OnWindowDestroyed(TSharedRef<FMacWindow, (ESPMode)0>)   [UnknownFile]) 
0x0dee5619 UE4Editor-ApplicationCore.dylib!FMacWindow::Destroy()   [UnknownFile]) 
0x0dfafba4 UE4Editor-Slate.dylib!FSlateApplication::PrivateDestroyWindow(TSharedRef<SWindow, (ESPMode)0> const&)   [UnknownFile]) 
0x0dfa392f UE4Editor-Slate.dylib!FSlateApplication::DestroyWindowsImmediately()   [UnknownFile]) 
0x0dfa33f1 UE4Editor-Slate.dylib!FSlateApplication::RequestDestroyWindow(TSharedRef<SWindow, (ESPMode)0>)   [UnknownFile]) 
0x0e0126dc UE4Editor-Slate.dylib!SDockingArea::OnOwningWindowBeingDestroyed(TSharedRef<SWindow, (ESPMode)0> const&)   [UnknownFile]) 
0x0e077b70 UE4Editor-Slate.dylib!TBaseSPMethodDelegateInstance<false, SDockingArea, (ESPMode)0, TTypeWrapper<void> (TSharedRef<SWindow, (ESPMode)0> const&)>::Execute(TSharedRef<SWindow, (ESPMode)0> const&) const   [UnknownFile]) 
0x0e9258b4 UE4Editor-SlateCore.dylib!SWindow::RequestDestroyWindow()   [UnknownFile]) 
0x0e011b81 UE4Editor-Slate.dylib!SDockingArea::CleanUp(SDockingNode::ELayoutModification)   [UnknownFile]) 
0x0e0971eb UE4Editor-Slate.dylib!SDockingTabWell::RemoveAndDestroyTab(TSharedRef<SDockTab, (ESPMode)0> const&, SDockingNode::ELayoutModification)   [UnknownFile]) 
0x0e1f40b8 UE4Editor-Slate.dylib!SDockTab::RemoveTabFromParent()   [UnknownFile]) 
0x0e01269d UE4Editor-Slate.dylib!SDockingArea::OnOwningWindowBeingDestroyed(TSharedRef<SWindow, (ESPMode)0> const&)   [UnknownFile]) 
0x0e077b70 UE4Editor-Slate.dylib!TBaseSPMethodDelegateInstance<false, SDockingArea, (ESPMode)0, TTypeWrapper<void> (TSharedRef<SWindow, (ESPMode)0> const&)>::Execute(TSharedRef<SWindow, (ESPMode)0> const&) const   [UnknownFile]) 
0x0e9258b4 UE4Editor-SlateCore.dylib!SWindow::RequestDestroyWindow()   [UnknownFile]) 
0x0dfddc51 UE4Editor-Slate.dylib!FSlateApplication::OnWindowClose(TSharedRef<FGenericWindow, (ESPMode)0> const&)   [UnknownFile]) 
0x0debd456 UE4Editor-ApplicationCore.dylib!FMacApplication::CloseWindow(TSharedRef<FMacWindow, (ESPMode)0>)   [UnknownFile]) 
0x0debd225 UE4Editor-ApplicationCore.dylib!__29-[FCocoaWindow performClose:]_block_invoke   [UnknownFile]) 
0x08e6aa68 UE4Editor-Core.dylib!FCocoaRunLoopSource::Process(__CFString const*)   [UnknownFile]) 
0x08e6a519 UE4Editor-Core.dylib!-[FCocoaRunLoopSourceInfo perform]   [UnknownFile]) 
0x36439821 CoreFoundation!__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__()   [UnknownFile]) 
0x364f34cc CoreFoundation!__CFRunLoopDoSource0()   [UnknownFile]) 
0x3641c2c0 CoreFoundation!__CFRunLoopDoSources0()   [UnknownFile]) 
0x3641b73d CoreFoundation!__CFRunLoopRun()   [UnknownFile]) 
0x3641afa3 CoreFoundation!CFRunLoopRunSpecific()   [UnknownFile]) 
0x08e6b3ea UE4Editor-Core.dylib!PerformBlockOnThread(FCocoaRunLoopSource&, void () block_pointer, NSArray*, NSString*, bool)   [UnknownFile]) 
0x08e6b101 UE4Editor-Core.dylib!MainThreadCall(void () block_pointer, NSString*, bool)   [UnknownFile]) 
0x0ded0471 UE4Editor-ApplicationCore.dylib!FMacApplication::ProcessMouseDownEvent(FDeferredMacEvent const&, TSharedPtr<FMacWindow, (ESPMode)0>)   [UnknownFile]) 
0x0dec52d6 UE4Editor-ApplicationCore.dylib!FMacApplication::ProcessEvent(FDeferredMacEvent const&)   [UnknownFile]) 
0x0dec4d3f UE4Editor-ApplicationCore.dylib!FMacApplication::ProcessDeferredEvents(float)   [UnknownFile]) 
0x0df97cf0 UE4Editor-Slate.dylib!FSlateApplication::TickPlatform(float)   [UnknownFile]) 
0x0df97283 UE4Editor-Slate.dylib!FSlateApplication::Tick(ESlateTickType)   [UnknownFile]) 
0x07ed28de UE4Editor!FEngineLoop::Tick()   [UnknownFile]) 
0x07eda7a2 UE4Editor!GuardedMain(wchar_t const*)   [UnknownFile]) 
0x07ee7e40 UE4Editor!-[UE4AppDelegate runGameThread:]   [UnknownFile]) 
0x08e6ad17 UE4Editor-Core.dylib!-[FCocoaGameThread main]   [UnknownFile]) 
0x384d96d8 Foundation!__NSThread__start__()   [UnknownFile]) 
0x5dc876c1 libsystem_pthread.dylib!_pthread_body()   [UnknownFile]) 
0x5dc8756d libsystem_pthread.dylib!_pthread_body()   [UnknownFile]) 
0x5dc86c5d libsystem_pthread.dylib!thread_start()   [UnknownFile]) 
Steps to Reproduce

repro steps currently unknown

Callstack
SEGV_MAPERR at 0x3

UE4Editor-ApplicationCore.dylib!invocation function for block in FMacApplication::DeferEvent()
UE4Editor-Core.dylib!invocation function for block in PerformBlockOnThread(FCocoaRunLoopSource&, void()
UE4Editor-Core.dylib!FCocoaRunLoopSource::Process()
UE4Editor-Core.dylib!<Unknown>
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
UE4Editor-Core.dylib!PerformBlockOnThread(FCocoaRunLoopSource&, void()
UE4Editor-Core.dylib!MainThreadCall(void()
UE4Editor-ApplicationCore.dylib!FMacWindow::BringToFront()
UE4Editor-Slate.dylib!FSlateNotificationManager::ForceNotificationsInFront(TSharedRef<SWindow,()
UE4Editor-Slate.dylib!FSlateApplication::ProcessWindowActivatedEvent()
UE4Editor-Slate.dylib!FSlateApplication::OnWindowActivationChanged(TSharedRef<FGenericWindow,()
UE4Editor-ApplicationCore.dylib!FMacApplication::OnWindowActivationChanged(TSharedRef<FMacWindow,()
UE4Editor-ApplicationCore.dylib!FMacApplication::OnWindowDestroyed(TSharedRef<FMacWindow,()
UE4Editor-ApplicationCore.dylib!FMacWindow::Destroy()
UE4Editor-Slate.dylib!FSlateApplication::PrivateDestroyWindow(TSharedRef<SWindow,()
UE4Editor-Slate.dylib!FSlateApplication::DestroyWindowsImmediately()
UE4Editor-Slate.dylib!FSlateApplication::RequestDestroyWindow(TSharedRef<SWindow,()
UE4Editor-Slate.dylib!SDockingArea::OnOwningWindowBeingDestroyed(TSharedRef<SWindow,()
UE4Editor-Slate.dylib!TBaseSPMethodDelegateInstance<false, SDockingArea, (ESPMode)0, TTypeWrapper<void> (TSharedRef<SWindow, (ESPMode)0> const&)>::Execute(TSharedRef<SWindow,()
UE4Editor-SlateCore.dylib!SWindow::RequestDestroyWindow()
UE4Editor-Slate.dylib!SDockingArea::CleanUp()
UE4Editor-Slate.dylib!SDockingTabWell::RemoveAndDestroyTab(TSharedRef<SDockTab,()
UE4Editor-Slate.dylib!SDockTab::RemoveTabFromParent()
UE4Editor-Slate.dylib!SDockingArea::OnOwningWindowBeingDestroyed(TSharedRef<SWindow,()
UE4Editor-Slate.dylib!TBaseSPMethodDelegateInstance<false, SDockingArea, (ESPMode)0, TTypeWrapper<void> (TSharedRef<SWindow, (ESPMode)0> const&)>::Execute(TSharedRef<SWindow,()
UE4Editor-SlateCore.dylib!SWindow::RequestDestroyWindow()
UE4Editor-Slate.dylib!FSlateApplication::OnWindowClose(TSharedRef<FGenericWindow,()
UE4Editor-ApplicationCore.dylib!FMacApplication::CloseWindow(TSharedRef<FMacWindow,()
UE4Editor-ApplicationCore.dylib!<Unknown>
UE4Editor-Core.dylib!FCocoaRunLoopSource::Process()
UE4Editor-Core.dylib!<Unknown>
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
UE4Editor-Core.dylib!PerformBlockOnThread(FCocoaRunLoopSource&, void()
UE4Editor-Core.dylib!MainThreadCall(void()
UE4Editor-ApplicationCore.dylib!FMacApplication::ProcessMouseDownEvent(FDeferredMacEvent const&, TSharedPtr<FMacWindow,()
UE4Editor-ApplicationCore.dylib!FMacApplication::ProcessEvent()
UE4Editor-ApplicationCore.dylib!FMacApplication::ProcessDeferredEvents()
UE4Editor-Slate.dylib!FSlateApplication::TickPlatform()
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>

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Fixed
ComponentTools - Desktop
Affects Versions4.18.1
Target Fix4.19
Fix Commit3734244
Main Commit3807911
CreatedDec 1, 2017
ResolvedDec 6, 2017
UpdatedDec 14, 2017