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Fixed in 2020.1.X

Fixed in 2019.3.X



Found in


Issue ID




Assertions spam the Console when minimizing the Editor Window

Asset - Database


On 2020.1, if you start a new project you will get spammed with a lot of errors and assertions.
Every time the user would minimize the Editor window or click in and out of the Editor Window, the erros get printed again and again in the console

To reproduce:
- Start a new project using 2020.1.0a1
- notice the assertions:
Assertion failed on expression: 'txn.Exists(guid)'
Assertion failed on expression: 'false'

Replicates in Widows, MacOS and Linux

Reproducible in 2020.1.0a1, 2019.3.0b1

Cannot reproduce in 2019.2.0a12

Comments (8)

  1. niels_unity796

    Jan 07, 2021 14:58

    Still not fixed in 2020.2.1f

  2. Tkrain42

    Oct 10, 2020 06:05

    it's not fixed in 2020.1.3

  3. AlbertoWF

    Dec 11, 2019 09:09

    It happened to me in Unity 2019.3.0f1.

    The error messages are:

    "Assertion failed on expression: 'txn.Exists(guid)'"
    "Assertion failed on expression: 'initialScriptRefresh && GetAssetTypeV2(guid) == AssetDatabase::kSerializedAsset'"

  4. cassidycurtis

    Sep 24, 2019 17:24

    I can confirm KINDOF3D's workaround above. I quit Unity 2019.3.0b1, started Visual Studio and opened a few project files, and then restarted Unity. The assertion failure errors seem to have gone away.

  5. rmail2006

    Sep 19, 2019 21:12

    Got the issue in 2019.3.0b1. Started a new project with no errors. Created a C# script and got the errors. Cleared teh errors, deleted the script, and they reappeared on deletion.

  6. kindof3d

    Sep 16, 2019 10:43

    Hey, the problem is gone for me if I open VS Code with the project files open BEFORE I open Unity.

  7. jjfawkes

    Sep 09, 2019 14:04

    When is this going to be fixed? Beta (2019.3.0b2) is currently not usable at all due to this bug.

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