How to reproduce:
1. Create a new project
2. Open the Package Manager (Window -> Package Management -> Package Manager)
3. Install the "uGUI" package
4. In the Hierarchy, create a new Canvas GameObject
5. Under the created Canvas, create a child Image GameObject
6. Toggle the Caps Lock key on
7. In Scene view, try to move the Image GameObject around using the Rect tool
8. Observe the Image GameObject
Actual result: The Image does not move when dragged
Expected result: The Image can be moved by dragging
Reproducible with: 6000.0.0f1, 6000.0.82f1, 6000.3.23f1, 6000.5.10f1, 6000.6.0b10, 6000.7.0a5
Reproducible on: macOS 26.5
Not reproducible on: Windows 11
Note: Only the Rect tool is affected, the Move tool can still be used while Caps Lock is on