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Fixed in 2020.2.X

Fixed in 2020.1.X



Found in




Issue ID




'globalgamemanagers.assets' file is not deterministic when comparing two builds of the same project



Reproduction steps:
1. Open the attached project ("")
2. In the top toolbar, select Build > Windows Build With PostProcess
3. Close Unity
4. Navigate to the "<ProjectDirectory>/build/MyGame_data"
5. Make a copy of "globalgamemanagers.assets" file
6. Re-open the project and repeat the same steps
7. Compare both "globalgamemanagers.assets" files

Expected result: Both files are identical
Actual result: Files have two-byte difference in the header

Reproducible with: 2020.1.0b2, 2020.1.3f1, 2020.2.0a2, 2020.2.0a21
Not reproducible with: 2018.4.26f1, 2019.4.8f1, 2020.1.0b1, 2020.2.0a1

Note: On 2018.4 stream, file headers match, but they have other differences

  1. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0b1

  2. Resolution Note (fix version 2020.1):

    Fixed in 2020.1.5f1

Comments (3)

  1. AndrewSpalato

    Feb 26, 2024 06:42

    Happens also on Unity 2022.3.10f1 and 2022.3.17f1. Workaround is restarting Unity and trigger a build without playing in the Editor. It is annoying though and does not provide enough info on what the name of the asset was.

  2. reckoning47

    Oct 26, 2023 02:09

    Seeing this on 2022.3.4 as well.

  3. kaarloew

    Sep 02, 2021 11:56

    We are still seeing serialization issues with globalgamemanagers.assets, it gets corrupted on second build we do on both iOS and Android platforms. Using Unity 20203.15f2

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