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Fixed in Built-in



Found in [Package]


Issue ID




UIToolkit Slider does not cancel interaction with Mouse when Left Mouse Button is released outside the Game Window

Package: UI Toolkit


Reproduction steps:
1. Download and open the attached project ''
2. Open scene 'SampleScene'
3. Enter Play Mode
4. In the Game View, select point in Slider then Click and Hold Left Mouse Button
5. Navigate outside the Game View with Mouse and release Left Mouse Button
6. Navigate to the Game View with Mouse and try navigating around the Game

Expected result: Slider value doesn't change
Actual result: Slider value keeps on changing relative to the position of Mouse

Reproducible with: 1.0.0-preview.13 (2020.2.1f1)
Couldn't test with: 2018.4.30f1, 2019.4.17f1 (Couldn't downgrade the project), 2021.1.0b3, 2021.2.0a2 (Couldn't upgrade the project)

  1. Resolution Note (fix version Built-in):

    Fixed in: 2022.2.0a3

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