Description

The editor is crashing sporadically in OSX 10.12.

I have just started hitting this crash ~ 3-4 times a day usually when opening a new tab of some sort in the Mac editor

Looking at the various reports on CRC it appears this is only occurring in 10.12 version of Mac OS.

Steps to Reproduce

I don't have a solid repro for this as it happens randomly but it usually occurs when opening a new tab in the editor such as the project settings or details panel

Callstack
-[NSApplication _crashOnException:] Address = 0x80638aee (filename not found) [in AppKit]
__37+[NSDisplayCycle currentDisplayCycle]_block_invoke.31 Address = 0x806fedea (filename not found) [in AppKit]
__CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__() Address = 0x82672ec7 (filename not found) [in CoreFoundation]
__CFRunLoopDoObservers() Address = 0x82672e37 (filename not found) [in CoreFoundation]
__CFRunLoopRun() Address = 0x82653ad9 (filename not found) [in CoreFoundation]
CFRunLoopRunSpecific() Address = 0x82653514 (filename not found) [in CoreFoundation]
RunCurrentEventLoopInMode() Address = 0x81bf0fbc (filename not found) [in HIToolbox]
ReceiveNextEventCommon() Address = 0x81bf0cf9 (filename not found) [in HIToolbox]
_BlockUntilNextEventMatchingListInModeWithFilter() Address = 0x81bf0c26 (filename not found) [in HIToolbox]
_DPSNextEvent() Address = 0x802dab79 (filename not found) [in AppKit]
-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] Address = 0x809f01c3 (filename not found) [in AppKit]
-[NSApplication run] Address = 0x802cf53d (filename not found) [in AppKit]
tchar_main(int, wchar_t**) Address = 0xf405d2a  (filename not found) [in UE4Editor]
main() Address = 0xf40558e  (filename not found) [in UE4Editor]
start() Address = 0x9771e255 (filename not found) [in libdyld.dylib]

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Fixed
ComponentPlatform - Mac
Affects Versions4.14
Target Fix4.14
Fix Commit3178553
Release Commit3178553
CreatedOct 27, 2016
ResolvedOct 28, 2016
UpdatedApr 27, 2018