Cannot change “Irradiance Quality” property value when click and dragging on the property title in Lightmap Parameters

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Create new Lightmap Parameters (Assets > Create > Rendering > Lightmap Parameters)
3. Select the newly created Lightmap Parameters asset in the Project window
4. Click and drag on the Irradiance Quality to change the value
5. Observe the Inspector window

Actual results: Cannot change “Irradiance Quality” property value when click and dragging on the property title

Expected results: Can change "Irradiance Quality" property value when click and dragging on the property title

Reproducible with versions: 6000.0.0f1, 6000.0.77f1, 6000.3.17f1, 6000.4.11f1, 6000.5.0f1, 6000.6.0a7

Tested on (OS): MacOS Silicon Tahoe 26.3, Ubuntu 24.04

Notes:

• Other properties behave as intended in the Lightmap Parameters