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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
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.
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ctronc
Jul 14, 2017 20:57
Has happened to me 3 times today. On Unity 2017.1.0f3. I'm doing some heavy alt-tabbing, maybe it's that?
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sbrodie
Jul 14, 2017 17:59
Happening regularly on Unity 2017.1.0f3, both new and upgraded projects.
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darthbator
Jul 14, 2017 08:47
This issue is not fixed I am still encountering it as well
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Cynikal
Jul 14, 2017 06:30
Just happened to be in the latest release of 2017.1.0f3
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ventedpennies
Jul 14, 2017 04:22
This is not fixed for 2017. I have never received this error, now I receive it on a regular basis.
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RafayAli
Jul 13, 2017 12:12
Its happening ever since I installed 2017.1, never happened even once when using previous versions.
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ReneBuehling
Jul 12, 2017 17:27
This is NOT resolved. It still happens in 2017.1.0f3 (64-bit)
Actually it happens even *since* I am using 2017.1, and did not happen before. :(
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Atticite
Jul 11, 2017 19:38
Just encountered this one in 2017.1.0f3, so not entirely fixed ...
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fogsight
Jul 02, 2017 01:27
"Fatal Error!
Callback registration failed. Increase kMaxCallback."
Unity 2017.1.0f1
Happens sporadically. Last time on Alt-Tab back when left running scene in Play mode. -
Lepascal
Jun 20, 2017 10:38
Idem in Mac Unity 2017.1.0.B9.
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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.