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Engine crashes constantly on mac os sierra

The crashes happen more or less constantly. I have a fully updated mac book pro. xCode is updated as well.

The crashes are sometimes happening on blueprint saves. Other times it happens when i ALT+Tab back into the program - this also happens regardless of whether a blueprint is open.

If you need additional information please let me know and i will be happy to provide whatever you need. I hope you can help.


 Log file open, 08/16/17 14:38:20
 LogPlatformFile: Not using cached read wrapper
 LogInit: Display: RandInit(-1899888877) SRandInit(-1899888845).
 LogTaskGraph: Started task graph with 4 named threads and 5 total threads with 1 sets of task threads.
 LogInit: Build: ++UE4+Release-4.17-CL-3573198
 LogInit: Engine Version: 4.17.0-3573198+++UE4+Release-4.17
 LogInit: Compatible Engine Version: 4.17.0-3573198+++UE4+Release-4.17
 LogInit: Net CL: 3573198
 LogInit: Compiled (64-bit): Aug  4 2017 17:02:27
 LogInit: Compiled with Clang: 8.1.0 (clang-802.0.42)
 LogInit: Build Configuration: Shipping
 LogInit: Branch Name: ++UE4+Release-4.17
 LogInit: Command line:  "/Users/henrikhansen/Library/Application Support/Epic/UnrealEngine/4.17/Saved/Crashes/CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e/"
 LogInit: Base directory: /Users/Shared/Epic Games/UE_4.17/Engine/Binaries/Mac/
 LogInit: Installed Engine Build: 1
 LogInit: Presizing for max 100000 objects, including 0 objects not considered by GC, pre-allocating 0 bytes for permanent pool.
 LogInit: Object subsystem initialized
 [2017.08.16-10.38.20:106][  0]LogInit: macOS 10.12.6 (16G29)
 [2017.08.16-10.38.20:106][  0]LogInit: Model: MacBookPro12,1
 [2017.08.16-10.38.20:106][  0]LogInit: CPU: Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
 [2017.08.16-10.38.20:106][  0]LogInit: CPU Page size=4096, Cores=2, HT=4
 [2017.08.16-10.38.20:106][  0]LogInit: Computer: henriks-MBP-2
 [2017.08.16-10.38.20:106][  0]LogInit: User: henrikhansen
 [2017.08.16-10.38.20:106][  0]LogInit: High frequency timer resolution =1000.000000 MHz
 [2017.08.16-10.38.20:106][  0]LogInit: Power Source: AC Power
 [2017.08.16-10.38.20:106][  0]LogInit: Memory total: Physical=8.0GB (8GB approx) Pagefile=1.0GB Virtual=9.0GB
 [2017.08.16-10.38.20:157][  0]LogAssetRegistry: FAssetRegistry took 0.0235 seconds to start up
 [2017.08.16-10.38.20:157][  0]LogUObjectArray: 159 objects as part of root set at end of initial load.
 [2017.08.16-10.38.20:157][  0]LogUObjectAllocator: 28800 out of 0 bytes used by permanent object pool.
 [2017.08.16-10.38.20:157][  0]LogUObjectArray: CloseDisregardForGC: 0/0 objects in disregard for GC pool
 [2017.08.16-10.38.20:158][  0]LogInit: Using OS detected language (en-US).
 [2017.08.16-10.38.20:158][  0]LogInit: Using OS detected locale (en-US).
 [2017.08.16-10.38.20:162][  0]LogTextLocalizationManager: No specific localization for 'en-US' exists, so the 'en' localization will be used.
 [2017.08.16-10.38.20:205][  0]LogPackageLocalizationCache: Processed 2 localized package path(s) for 2 prioritized culture(s) in 0.000053 seconds
 [2017.08.16-10.38.20:213][  0]CrashReportClientLog: CrashReportClientVersion=1.0
 [2017.08.16-10.38.20:213][  0]CrashReportClientLog: CrashReportReceiver disabled
 [2017.08.16-10.38.20:213][  0]CrashReportClientLog: DataRouterUrl: https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data
 [2017.08.16-10.38.20:213][  0]LogCrashDebugHelper: DepotName: //UE4/Release-4.17
 [2017.08.16-10.38.20:213][  0]LogCrashDebugHelper: BuiltFromCL: 3573198
 [2017.08.16-10.38.20:213][  0]LogCrashDebugHelper: EngineVersion: 4.17.0-3573198+++UE4+Release-4.17
 [2017.08.16-10.38.20:213][  0]LogCrashDebugHelper: BuildVersion: ++UE4+Release-4.17-CL-3573198
 [2017.08.16-10.38.20:213][  0]LogCrashDebugHelper: Warning: CrashDebugHelperConfig invalid
 [2017.08.16-10.38.20:213][  0]LogCrashDebugHelper: Warning: PDB Cache disabled
 [2017.08.16-10.38.20:244][  0]LogSlate: Using Freetype 2.4.12
 [2017.08.16-10.38.20:245][  0]LogSlate: SlateFontCache - WITH_FREETYPE: 1, WITH_HARFBUZZ: 1
 [2017.08.16-10.38.20:384][  0]CrashReportClientLog: Initial state = Unknown UploadState value
 [2017.08.16-10.38.20:384][  0]CrashReportClientLog: Initial state = Unknown UploadState value
 [2017.08.16-10.38.20:438][  0]LogSlate: Took 0.000416 seconds to synchronously load lazily loaded font '../../../Engine/Content/Slate/Fonts/Roboto-Regular.ttf' (155K)
 [2017.08.16-10.38.20:439][  0]LogSlate: Took 0.000471 seconds to synchronously load lazily loaded font '../../../Engine/Content/Slate/Fonts/Roboto-Bold.ttf' (160K)
 [2017.08.16-10.38.20:443][  0]LogSlate: Took 0.000511 seconds to synchronously load lazily loaded font '../../../Engine/Content/Slate/Testing/Fonts/Roboto-Italic.ttf' (157K)
 [2017.08.16-10.38.31:601][  0]CrashReportClientLog: Got 7 pending files to upload from 'CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e'
 [2017.08.16-10.38.31:601][  0]CrashReportClientLog: State change from Ready to SendingFiles
 [2017.08.16-10.38.31:601][  0]CrashReportClientLog: CompressAndSendData have 7 pending files
 [2017.08.16-10.38.31:601][  0]CrashReportClientLog: CompressAndSendData compressing 108 bytes ('/Users/henrikhansen/Library/Application Support/Epic/UnrealEngine/4.17/Saved/Crashes/CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e/CrashReportClient.ini')
 [2017.08.16-10.38.31:601][  0]CrashReportClientLog: CompressAndSendData compressing 90714 bytes ('/Users/henrikhansen/Library/Application Support/Epic/UnrealEngine/4.17/Saved/Crashes/CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e/Diagnostics.txt')
 [2017.08.16-10.38.31:601][  0]CrashReportClientLog: CompressAndSendData compressing 452 bytes ('/Users/henrikhansen/Library/Application Support/Epic/UnrealEngine/4.17/Saved/Crashes/CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e/info.txt')
 [2017.08.16-10.38.31:602][  0]CrashReportClientLog: CompressAndSendData compressing 169414 bytes ('/Users/henrikhansen/Library/Application Support/Epic/UnrealEngine/4.17/Saved/Crashes/CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e/minidump.dmp')
 [2017.08.16-10.38.31:602][  0]CrashReportClientLog: Warning: Skipping the report.wer
 [2017.08.16-10.38.31:602][  0]CrashReportClientLog: CompressAndSendData compressing 29139 bytes ('/Users/henrikhansen/Library/Application Support/Epic/UnrealEngine/4.17/Saved/Crashes/CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e/Survival_Game.log')
 [2017.08.16-10.38.31:602][  0]CrashReportClientLog: CompressAndSendData compressing 2011 bytes ('/Users/henrikhansen/Library/Application Support/Epic/UnrealEngine/4.17/Saved/Crashes/CrashReport-UE4-Survival_Game-pid-2102-6318b22d549de7dc7cbdd8384eb043e/wermeta.xml')
 [2017.08.16-10.38.31:618][  0]CrashReportClientLog: Sending HTTP request: https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data?AppID=CrashReporter&AppVersion=4.17.0-3573198%2B%2B%2BUE4%2BRelease-4.17&AppEnvironment=Release&UploadType=crashreports&UserID=b75af1f3d242eb1d854c7abe3b0acecd%7C10911461add34be194a2b93bf563450e%7C90C6528D-7E4B-5618-91BB-BEDFE15E6AD3
 [2017.08.16-10.38.34:435][  0]CrashReportClientLog: OnProcessRequestComplete(), State=SendingFiles bSucceeded=1
 [2017.08.16-10.38.34:435][  0]CrashReportClientLog: State change from SendingFiles to SendingFiles
 [2017.08.16-10.38.34:435][  0]CrashReportClientLog: All uploads done
 [2017.08.16-10.38.34:435][  0]CrashReportClientLog: State change from SendingFiles to Finished
 [2017.08.16-10.38.34:657][  0]LogMac: FPlatformMisc::RequestExit(0)
 [2017.08.16-10.38.34:691][  0]LogSlate: Request Window 'Unreal Engine 4 Crash Reporter' being destroyed
 [2017.08.16-10.38.34:698][  0]LogExit: Preparing to exit.
 [2017.08.16-10.38.34:701][  0]LogExit: Object subsystem successfully closed.
 [2017.08.16-10.38.34:701][  0]LogModuleManager: Shutting down and abandoning module ImageWrapper (12)
 [2017.08.16-10.38.34:701][  0]LogModuleManager: Shutting down and abandoning module InputCore (10)
 [2017.08.16-10.38.34:701][  0]LogModuleManager: Shutting down and abandoning module AnalyticsET (8)
 [2017.08.16-10.38.34:701][  0]LogModuleManager: Shutting down and abandoning module HTTP (7)
 [2017.08.16-10.38.34:701][  0]LogHttp: Display: Http module shutting down, but needs to wait on 1 outstanding Http requests:
 [2017.08.16-10.38.34:701][  0]LogHttp: Display:     verb=[POST] url=[https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data?SessionID=%7B9D3010ED-2945-237D-3AE0-AE82FBF9F941%7D&AppID=CrashReporter.Release&AppVersion=%2B%2BUE4%2BRelease-4.17-CL-3573198&UserID=b75af1f3d242eb1d854c7abe3b0acecd%7C10911461add34be194a2b93bf563450e%7C90C6528D-7E4B-5618-91BB-BEDFE15E6AD3&AppEnvironment=datacollector-binary&UploadType=eteventstream] status=Processing
 [2017.08.16-10.38.34:701][  0]LogHttp: Display: Sleeping 0.5s to wait for 1 outstanding Http requests.
 [2017.08.16-10.38.35:243][  0]LogModuleManager: Shutting down and abandoning module CrashDebugHelper (4)
 [2017.08.16-10.38.35:243][  0]LogModuleManager: Shutting down and abandoning module CoreUObject (2)
 [2017.08.16-10.38.35:243][  0]LogExit: Exiting.
 [2017.08.16-10.38.35:246][  0]Log file closed, 08/16/17 14:38:35

Product Version: UE 4.17
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asked Aug 16 '17 at 12:34 PM in Bug Reports

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YAS Consultancy
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avatar image Tim C ♦♦ STAFF Aug 17 '17 at 02:21 PM


Unfortunately I don't see anything in the log that would indicate what is causing the crash. Do you see this happening in a new test project as well, or only in your own project?


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I was actually using a third person test project. But i will try with a different one to see if it happens in the others as well.

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answered Aug 19 '17 at 05:55 AM

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YAS Consultancy
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avatar image Tim C ♦♦ STAFF Mar 09 '18 at 12:15 AM


Sorry for not getting back to you sooner. Do you still see this happen with Mac OS High Sierra?


avatar image Tim C ♦♦ STAFF Apr 25 '18 at 06:40 PM


We have not heard back from you for a while. Do you still need help with this issue? I will be marking this post as resolved for internal tracking purposes, but please feel free to add a comment and re-open the post if you need any additional assistance.


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