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Fixed in 2018.1.X

Fixed in 5.6.X, 2017.1.X, 2017.2.X, 2017.3.X, 2017.4.X



Found in


Issue ID




"Assertion failed: TLS Allocator ALLOC_TEMP_THREAD..." error is shown after building the project for iOS'



To reproduce:

1. Create a new project
2. Build it for iOS
3. Observe the console after the build has finished

Expected: no assertion errors are shown after building the project for iOS

Reproduced in 5.6.0a2, 5.6.1p4, 2017.1.0b8, 2017.2.0a4
Did not reproduced in 5.5.4f1, 5.6.0a1
Regression introduced in 5.6.0a2
Not reproducible in 2017.3.0a3

Comments (126)

  1. MagnusBoll

    Dec 05, 2022 23:25

    Just happen to me on version 2021.3.11f1

  2. zeynepunity

    Dec 05, 2022 14:44

    still happens in 2020.3.39f1

  3. HECer

    Jun 23, 2022 15:27

    Still happens with Unity 2020.3.33f1

  4. TheMaskedKasper

    May 12, 2022 07:53

    the issue still exists in 2019.4.36f1

  5. EthanHooper1023

    Mar 29, 2022 18:53

    this error spams the console in 2020.3.32
    it also happens when I push to unity collaborate in 2020.3.25

  6. pjblenkarn

    Mar 23, 2022 02:22

    Still happening in 2020.3.30, specifically around publishing changes to Collaborate

  7. EduardoBlacksmith

    Mar 15, 2022 14:07

    still broken in 2020.3.27f1

  8. Blacklabel_

    Jan 03, 2022 10:31

    I started getting this issue after publishing with unity collab. Closing and reopening seems to have resolved it.

  9. piers_audiomob

    Dec 14, 2021 14:11

    In my case, bug occurred directly after upgrade, no build required, and the setting was for Standalone/PC.

    A restart sorted it, and the bug has not recurred after building for iPhone.

  10. piers_audiomob

    Dec 14, 2021 13:50

    Reproduced when upgrading from 2018.4.36f1 to 2020.3.12f1.

    Please re-open.

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