ProBuilder Preferences "Lightmap UVs Settings" foldout does not open when clicked on its title

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Install the ProBuilder package (com.unity.probuilder)
3. Open the Preferences window (Unity > Settings)
4. Select the "ProBuilder" tab
5. Click on the "Lightmap UVs Settings" foldout's title
6. Observe the Preferences window

Actual results: Nothing happens

Expected results: The foldout opens

Reproducible with versions: 6.0.9 (6000.0.0f1, 6000.0.80f1), 6.1.2 (6000.3.21f1, 6000.5.6f1, 6000.6.0b6, 6000.7.0a3)

Tested on (OS): MacOS Silicon Tahoe 26.5.1, Windows 11