Unity Issue Tracker - Library becomes blank until it's updated when undoing actions in UI Builder if Tree View is scrolled down

Fixed

Fixed in 2022.3.13f1, 2023.1.19f1, 2023.2.0b15, 2023.3.0a11

Votes

0

Found in

2021.3.17f1

2022.2.7f1

2023.1.0b5

2023.2.0a2

2023.3.0a3

Issue ID

UUM-27288

Regression

Yes

Library becomes blank until it's updated when undoing actions in UI Builder if Tree View is scrolled down

-

Feb 15, 2023

How to reproduce:
1. Open any project
2. Navigate to Window > UI Toolkit > UI Builder
3. Set Library to Tree View
4. Drag and drop anything in the Library to the Viewport
5. Scroll down all the way in the Library Tree View
6. Undo action (ctrl+Z)

Expected result: Action is undone without any other changes
Actual result: Library becomes blank until the window is updated via scrolling or other changes that draw the window again

Note: 2021.3.17f1 reproduces the issue only partially. Not all of the window becomes blank, but the top part of it is empty.

Reproducible with: 2021.3.17f1 (Partially), 2022.2.2f1, 2022.2.7f1, 2023.1.0b5, 2023.2.0a2
Not reproducible with: 1.0.0-preview.18 (2020.3.45f1), 2022.2.1f1

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