Element UI disappears and NullReferenceException is thrown when dragging off the last or first element from the list in the Inspector

Unity: UI Toolkit Controls

Fixed

2023.2.X

2023.1.X

2023.1.0a26 onwards

2022.2.X

2022.2.3f1 onwards

Fixed in 2023.2.0a9

Fixed in 2023.1.0b11

How to reproduce:
1. Open the user’s attached “ListView Bug” project
2. Open the “SampleScene” Scene
3. Select the “Main Camera” GameObject in the Hierarchy
4. Drag the last element below the ListView in the Inspector

Expected result: No abnormal behaviour is observed
Actual result: Last element UI disappears and NullReferenceException is thrown when clicking on it

Reproducible with: 2022.2.3f1, 2022.2.5f1, 2023.1.0b2
Not reproducible with: 2020.3.44f1, 2021.3.18f1, 2022.2.2f1

Reproduced on: macOS 13.0 (Intel)

Element UI disappears and NullReferenceException is thrown when dragging off the last or first element from the list in the Inspector

Unity: UI Toolkit Controls

Fixed

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Have a workaround or additional info about this issue?

Element UI disappears and NullReferenceException is thrown when dragging off the last or first element from the list in the Inspector

Unity: UI Toolkit Controls

Statuses

Fixed

Resolution Notes

2023.2.XFixedFixed in 2023.2.0a9

2023.1.XFixedFixed in 2023.1.0b11

Description

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Have a workaround or additional info about this issue?