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Fixed in 2021.3.11f1, 2022.1.14f1, 2022.2.0b4, 2023.1.0a1

Unknown (hidden) 2022.2.X



Found in


Issue ID




"TwoPaneSplitView" pane resets to its minimum size when hidden and shown again

UI Toolkit Controls


How to reproduce:
1. Open project "Transition"
2. Open Menu > Window > TwoPaneSplitViewIssue Window
3. Resize the yellow pane by dragging the bottom bar down
4. Press the "Hide split view" button
5. Press the "Show split view. Notice pane has reset size" button
6. Observe the yellow pane size

Expected result: Yellow pane size is the same as after the 3rd step
Actual result: Yellow pane size is changed to the primary/minimum size

Reproducible with: 1.0.0-preview.11 (2020.3.35f1), 1.0.0 (2021.3.3f1, 2022.1.1f1, 2022.2.0a13)
Could not test with: 2019.4.39f1 (No UI Toolkit package), 1.0.0-preview.9 (Blank "TwoPaneSplitViewIssue" window)

  1. Resolution Note (fix version 2023.1.0a1):

    Fixed in: 2023.1.0a1

  2. Resolution Note (fix version 2022.2.0b4):

    Fixed in: 2022.2.0b4

  3. Resolution Note (2022.2.X):

    Created by mistake

  4. Resolution Note (fix version 2022.1.14f1):

    Fixed in: 2022.1.14f1

  5. Resolution Note (fix version 2021.3.11f1):

    Fixed in: 2021.3.11f1

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