How to reproduce:
1. Open the attached "IN-145237_SITextHang.zip" project
2. In the Project tab, double click the "Document" to open it in the UI Builder
3. In the Hierarchy, select "Label" element
4. In the Inspector, expand "Size" properties
5. Click and hold on "Height", and drag to reduce its size to 0
6. Observe the loading popup
Actual result: A "Waiting for Unity's code in UnityEditor.UIElements.dll to finish executing" loading popup appears, loading infinitely
Expected result: The loading popup does not appear
Reproducible with: 6000.0.15f1, 6000.0.77f1, 6000.3.18f1, 6000.4.11f1, 6000.5.0f1, 6000.6.0a7
Could not test with: 6000.0.0f1 (Changing value by dragging feature not available)
Reproducible on: Windows 11
Not reproducible on: No other environments tested
Notes:
- Manually setting the "Height" value to zero by editing the value in its field does not cause the issue
- If the "Width" value is set to zero or is negative before dragging the "Height" value, the issue does not appear