Steps to reproduce:

1. Create a new URP Project.
2. Import attached TabUXML.uxml or create a UI Document with 3 tabs using Tabs nested inside TabView.
3. In the UI Document Hierarchy, move Tab 1 to between Tab 2 and Tab 3.

Actual results: Tab order is 2, 3, 1. The moved tab will always go to the end of the tabs.

Expected results: Tab order is 2, 1, 3. The moved tab should match its position in hierarchy.

Reproducible with versions: 6000.1.0a6, 6000.0.29f1

Can’t test with versions: 2022.3.52f1, 2021.3.45f1 - no Tab/TabView available.

Tested on (OS): MacOS 12.7.6

Notes:

• Pressing Ctrl+S will set this to the expected result. You may not want to save until you are happy with your changes because of UUM-87092.
• Have not thoroughly regression tested this as it seems to be a new feature. Please contact the ticket reporter if regression testing will be useful.