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Fixed in 2018.3

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

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. Response avatar

    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.

Comments (201)

  1. 81c9cca8ee0e136fe3c626fc762cb689?d=mm

    Dawid_Matuszewski

    Sep 18, 2017 12:13

    The same here
    System: Windows 10 Pro 64 bit
    Unity : 2017.1.1f1 64 bit
    it's very annoying - every ~30 minutes.

  2. 2b75553ec4875ac66bc78f8f38415a74?d=mm

    EliasHasle

    Sep 17, 2017 19:31

    Same problem in version 2017.1.1f1 education version on Windows 10 x64. Running the update tool from the help menu says this is the most current version.

  3. F1f287055d4c271281828ef18b550638?d=mm

    unigeek

    Sep 16, 2017 19:54

    The issue remains in 2017.1.1f1

  4. Dc1b254760f44d16cd4f684456bf554f?d=mm

    karl_jones

    Sep 13, 2017 11:35

    If you still have this issue in 2017.1.1p1 then please file a bug report and/or post here with your log file https://forum.unity.com/threads/annoying-bug-editor-crashing-with-increase-kmaxcallback.487655/page-2

  5. 690dd33162f4b442491b979ebed4d53e?d=mm

    Lukas-Wendt

    Sep 12, 2017 11:53

    Still an issue on 2017.1.1f1

  6. B67ce856fdd72199c8b8ded4754496f2?d=mm

    krisbeck

    Sep 12, 2017 11:21

    At least do the auto save on forced exit!

  7. 20af11c25b0af66125917508649cf782?d=mm

    jinnindo

    Sep 12, 2017 03:27

    This is *not fixed in 2017.1p1

    You're giving me trust issues, unity.

  8. Ce8859acdfbeb4ac4bcc69fb6f9f63d8?d=mm

    Warsymphony

    Sep 12, 2017 00:48

    Still getting this error 9-11-17

  9. Be052c2b9bd2d60262a41a15c59f8eb2?d=mm

    godboldADX

    Sep 11, 2017 18:53

    Getting this issue with Unity 2017.1.0f3

  10. 2766dea7940c5285fff4e9a4af64f412?d=mm

    burakkurkcu

    Sep 10, 2017 08:23

    From the release notes of Patch 2017.1.1p1:
    (873467) - Editor : Fixed Callback registration failed kMaxCallback crash when entering playmode.

    At last, it's solved!

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