Empty window appears when hovering over UXML Asset in UI Builder

Unity: UI Builder

As Designed

6.2.X

6.1.X

6.0.X

2022.3.X

2021.3.X

This is as designed. When hovering a UXML file in the project tab of the UI Builder, we will display a preview of the content of the UXML file. In this case, since the UXML file doesn't contain any elements, the preview will also appear empty.

Steps to reproduce:
1. Create a project
2. Create > UI Toolkit > UI Document
3. Double-click newly created UI Document to open UI Builder window
4. Select Project in Library section
5. Hover over UXML Asset and observe

Actual results: Empty field appears next to Library section
Expected results: Field with something in it appears next to Library section

Reproducible with versions: 2021.3.51f1, 2022.3.61f1, 6000.0.47f1, 6000.1.0b15, 6000.2.0a9

Tested on (OS): macOS Sequoia 15.3.1 (Intel)

Note: Issue is also reproducing with Custom Controls Assets

Empty window appears when hovering over UXML Asset in UI Builder

Unity: UI Builder

As Designed

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Empty window appears when hovering over UXML Asset in UI Builder

Unity: UI Builder

Statuses

As Designed

Resolution Notes

6.2.XAs DesignedThis is as designed. When hovering a UXML file in the project tab of the UI Builder, we will display a preview of the content of the UXML file. In this case, since the UXML file doesn't contain any elements, the preview will also appear empty.

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?