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Fixed in 2022.2.X

Fixed in 2021.2.X, 2022.1.X



Found in





Issue ID




[UI Builder] Setting Element's Margins to auto in a newly created file completely shrinks the Element and breaks the Inspector

UI Toolkit


How to reproduce:
1. Create a new project
2. Click Window -> UI Toolkit -> UI Builder
3. In the Hierarchy, add a new Label
4. Set the Left Margin to "auto"
5. Save the UI file

Expected results: After the file is saved, the UI layout does not change and the Inspector window is functional
Actual results: The Laber is shrunk, Inspector window becomes blank when the Label is selected

Reproducible with: 2020.3.12f1(1.0.0-preview.14), 2021.1.12f1, 2021.1.0b1
Could not test with: 2018.4.35f1, 2019.4.28f1(UI Builder was not yet available)

Workaround - Saving the file before setting the Margins to Auto seems to prevent the issue

1. 2021.1 and 2021.2 streams were tested using the built-in package versions
2. The issue seems to only occur when the "auto" option is used. "px", "%" and "initial" didn't cause the issue

  1. Resolution Note (fix version 2022.2):

    Fixed in Unity 2022.2.0a4

  2. Resolution Note (fix version 2022.1):

    Fixed in - 2022.1.0b10

  3. Resolution Note (fix version 2021.2):

    Fixed in - 2021.2.13f1

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