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Fixed in 2018.3.X

Fixed in 5.5.X, 5.6.X, 2017.1.X, 2017.2.X, 2018.1.X, 2018.2.X

Votes

334

Found in

5.6.0b5

2017.1.0f3

Issue ID

873467

Regression

Yes

Unity throws out Fatal Error: Callback registration failed kMaxCallback

Themes

-

Unity throws out Fatal Error: "Callback registration failed kMaxCallback" after working with the project for 30 minutes or more. It appears randomly.

Steps:
1. Actively use Unity for more than 30 minutes

Actual: Unity continues to work
Result: Unity crashes with Fatal Error.

Reproducible with: 2017.1.4f1, 2017.2.3p1, 2017.4.4f1, 2018.1.3f1, 2018.2.0b6

Note:
Reproduced on macOS, Windows, Linux.
Bug Report window does not appear.
Scene files are not restored after reopening Unity so all not saved Scenes are lost.

  1. karl_jones

    Jan 04, 2019

    Please file a new bug report If you are still encountering this problem. The error message is a symptom and can be caused by many different areas. The area for this bug has been fixed.

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Comments (202)

  1. WheresMommy

    Jul 12, 2018 17:31

    2018.2 official release, still getting the error randomly

  2. hippocoder

    Jun 28, 2018 20:55

    201.2.0b10 does it.

  3. noorbeast

    Jun 08, 2018 08:22

    Definitely not fixed in 2018.2.0b7, as I just ha it happen.

  4. sihame

    Feb 05, 2018 14:43

    Me too I still have it. I am on Unity 2017.1.0f3

  5. NeoGeek

    Jan 23, 2018 16:55

    STILL getting it. Urgh

  6. Barry100

    Nov 01, 2017 11:10

    im still getting this 2017 1.1.f1

  7. vdarned

    Oct 25, 2017 06:23

    I got it guys I know when it happens: It happens every time unity become selfaware

  8. karl_jones

    Oct 17, 2017 10:44

    @TNQIANG That callstack is not related to this issue. Please file a new bug so we can investigate.
    @GWOLF Please use the patch, it is not fixed in that version.

  9. tnqiang

    Oct 15, 2017 14:11

    I use Unity 2017.1.2f1 and this still occurs.
    My callstack is as following:

    0 il2cpp::vm::LivenessState::AddProcessObject(Il2CppObject*, il2cpp::vm::LivenessState*) (Liveness.cpp:334)
    1 il2cpp::vm::Liveness::FromStatics(void*) (Liveness.cpp:203)
    2 GarbageCollectSharedAssets (TimeHelper.h:26)
    3 IntegrateMainThread (UnloadUnusedAssetsOperation.cpp:46)
    4 UpdatePreloadingSingleStep (PreloadManager.cpp:478)
    5 UpdatePreloading (PreloadManager.cpp:613)
    6 PlayerLoop (PlayerLoop.cpp:104)
    7 UnityPlayerLoopImpl (LibEntryPoint.mm:223)
    8 UnityRepaint (UnityAppController+Rendering.mm:326)
    9 -[UnityAppController(Rendering) repaintDisplayLink] (UnityAppController+Rendering.mm:78)
    10 CA::Display::DisplayLinkItem::dispatch(unsigned long long) + 44
    11 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 436
    12 IODispatchCalloutFromCFMessage + 360
    13 ___CFMachPortPerform + 180
    14 ___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56
    15 ___CFRunLoopDoSource1 + 436
    16 ___CFRunLoopRun + 1752
    17 CFRunLoopRunSpecific + 420
    18 GSEventRunModal + 96
    19 UIApplicationMain + 196
    20 main (main.mm:33)
    21 _dyld_process_info_notify_release + 32

  10. gwolf

    Oct 09, 2017 17:27

    Definitely still a problem as of 2017.1.1f1, although it seems to be a more infrequent.

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