This is a common crash occurring for Mac users on the 4.17 Preview, and a few cases in 4.16. I have been unable to find any matching reports of this crash on Windows. There is a slight variation in the Callstack between the two linked CrashReports. All reports have so-far occurred on Mac OS 10.12
User Descriptions
SEGV_NOOP at 0x0 UE4Editor-Slate.dylib!FTextLayout::GetAsTextAndOffsets() UE4Editor-Slate.dylib!FSlateEditableTextLayout::FTextInputMethodContext::GetSelectionRange() 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!FMacPlatformMisc::PumpMessages() 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>
Callstack from Log
Critical error: === SIGSEGV: invalid attempt to access memory at address 0x0 LogMac: FTextLayout::GetAsTextAndOffsets(FString*, FTextLayout::FTextOffsetLocations*) const Address = 0x8a41990 (filename not found) [in UE4Editor-Slate.dylib] FSlateEditableTextLayout::FTextInputMethodContext::GetSelectionRange(unsigned int&, unsigned int&, ITextInputMethodContext::ECaretPosition&) Address = 0x8bcf4c9 (filename not found) [in UE4Editor-Slate.dylib] __31-[FCocoaTextView selectedRange]_block_invoke Address = 0x162d0a1 (filename not found) [in UE4Editor-Core.dylib] invocation function for block in PerformBlockOnThread(FCocoaRunLoopSource&, void () block_pointer, NSArray*, NSString*, bool) Address = 0x16972e0 (filename not found) [in UE4Editor-Core.dylib] FCocoaRunLoopSource::Process(__CFString const*) Address = 0x162f7f4 (filename not found) [in UE4Editor-Core.dylib] -[FCocoaRunLoopSourceInfo perform] Address = 0x162f246 (filename not found) [in UE4Editor-Core.dylib] __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__() Address = 0xd5e1e321 (filename not found) [in CoreFoundation] __CFRunLoopDoSources0() Address = 0xd5dff21d (filename not found) [in CoreFoundation] __CFRunLoopRun() Address = 0xd5dfe716 (filename not found) [in CoreFoundation] CFRunLoopRunSpecific() Address = 0xd5dfe114 (filename not found) [in CoreFoundation] FMacPlatformMisc::PumpMessages(bool) Address = 0x163840f (filename not found) [in UE4Editor-Core.dylib] FEngineLoop::Tick() Address = 0x13538bb (filename not found) [in UE4Editor] GuardedMain(wchar_t const*) Address = 0x135c1b2 (filename not found) [in UE4Editor] -[UE4AppDelegate runGameThread:] Address = 0x1369680 (filename not found) [in UE4Editor] -[FCocoaGameThread main] Address = 0x162fa76 (filename not found) [in UE4Editor-Core.dylib] __NSThread__start__() Address = 0xd78218ed (filename not found) [in Foundation] _pthread_body() Address = 0xeb7c593b (filename not found) [in libsystem_pthread.dylib] _pthread_body() Address = 0xeb7c5887 (filename not found) [in libsystem_pthread.dylib] thread_start() Address = 0xeb7c508d (filename not found) [in libsystem_pthread.dylib]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-47295 in the post.
| 0 |
| Component | UE - Platform - Apple |
|---|---|
| Affects Versions | 4.16, 4.17 |
| Target Fix | 4.18 |
| Created | Jul 17, 2017 |
|---|---|
| Resolved | Aug 23, 2017 |
| Updated | Apr 27, 2018 |