Steps to reproduce:
1. Create new Unity project
2. Install Addressables package via Package Manager
3. Right-click in Project window, navigate to Create > Addressables > Group Templates > 4. Create Blank Group Template
5. Make sure AddressableAssetGroupTemplate.asset is selected in Project window
6. In Inspector window press on “Add Schema” button
7. Select and add “Content Update Restriction” and “Resources and Built In Scenes”
8. On the right, press on a gear icon to open a menu
9. From the menu pick “Move Up” or “Move Down”
10. Observe the elements in the Inspector window

Actual results: “Move Up” or “Move Down” selections do nothing when trying to move Schemas in the Inspector window
Expected results: “Move Up” or “Move Down” selections move added Schemas in the Inspector window

Reproducible with versions: 6000.0.62f1, 6000.2.12f1, 6000.3.0b9, 6000.4.0a4

Tested on (OS): macOS Silicon Tahoe 26.0 (M1)