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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. 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 (205)

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  3. 9d0d14d49dced816bef3d1a23ae219b4?d=mm

    DefinitelyNotSteffen

    Feb 21, 2020 09:10

    I Still get this error in 2018.2.21f1.

  4. A6fc986ab7f0eaafedad213af21bf52f?d=mm

    ellend

    Apr 30, 2019 08:22

    Happened to me many times,v2018.2.3f1

  5. F9033d33caeaaf5c0bd043ac4528862b?d=mm

    Ruufer

    Apr 23, 2019 01:01

    STILL HAPPENING IN 2018.2.0f2

  6. 762bc915f22a530e1370c07f9ef6eb32?d=mm

    nuToH

    Sep 13, 2018 13:58

    2018.2.7 Not fixed. What to do? Wait for 2018.3?

  7. E554a28755f5d7c27767063338a43547?d=mm

    reuno

    Sep 02, 2018 18:11

    This is becoming annoying.
    Happens on a daily basis now, and has for a month or so (using 2018.2.x.
    I never encountered it before 2018.2 (or so rarely I never noticed it).

  8. 0afd0bfcedf6b9f4509f05f71e45df7d?d=mm

    stormred1236

    Aug 31, 2018 22:30

    Still the case for me too....

  9. 4ff0f9c8dada5a37a1a83e4c97054f73?d=mm

    Baraff

    Aug 30, 2018 05:09

    Related but unrelated. I get this same crash message in the log in windows standalone build when I run the build when built with 2018.2.5f1 but it works fine when built with 2018.2.3f1

    Callback registration failed. Increase kMaxCallback.
    (Filename: Line: 191)

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