Unreal Engine Issues and Bug Tracker (UE-45837)

Description

This is a common crash on Mac that has been occurring since at least the 4.14 release. Based on the one user description this may be related to the creation of structs. Additional information is not currently available.

User Descriptions

made a blueprint struct from the right-click menu in the content browser. Typed the name "GridCell" and hit enter, and the crash happened.

Steps to Reproduce

repro steps currently unknown. May be related to struct creation on Mac.

Callstack

SEGV_MAPERR at 0x3

UE4Editor-Core.dylib!FApplePlatformString::TCHARToCFString()
UE4Editor-Core.dylib!<Unknown>
AppKit!<Unknown>
AppKit!<Unknown>
AppKit!<Unknown>
AppKit!<Unknown>
AppKit!<Unknown>
AppKit!<Unknown>
AppKit!<Unknown>
AppKit!<Unknown>
QuartzCore!CA::Transaction::run_commit_handlers()
QuartzCore!CA::Context::commit_transaction()
QuartzCore!CA::Transaction::commit()
AppKit!<Unknown>
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
CoreFoundation!Unknown()
HIToolbox!<Unknown>
HIToolbox!<Unknown>
HIToolbox!<Unknown>
AppKit!<Unknown>
AppKit!-[NSApplication()
AppKit!<Unknown>
UE4Editor!tchar_main()
UE4Editor!<Unknown>
libdyld.dylib!<Unknown>

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Fixed

Component	UE - Platform - Apple
Affects Versions	4.14, 4.15, 4.16
Target Fix	4.17.1

Fix Commit	3582374
Main Commit	3617655

Created	Jun 8, 2017
Resolved	Aug 11, 2017
Updated	Apr 27, 2018

UE-45837

[CrashReport] Mac crash in UE4Editor-Core.dylib!FApplePlatformString::TCHARToCFString()

[CrashReport] Mac crash in UE4Editor-Core.dylib!FApplePlatformString::TCHARToCFString()

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