Help button leads to a missing documentation page when clicked on a Font Import Settings in the Inspector

How to reproduce:

1. Open the attached "IN-145223_Font.zip" project
2. In the Project tab, Assets->TextMesh Pro → Fonts
3. Click on LiberationSans (Font) Import Settings
4. In the Inspector, click the “?” button in the top right

Actual result: “Sorry... that page seems to be missing!” is displayed
Expected result: Documentation page is displayed without errors

Reproducible with: 6000.0.0f1, 6000.0.77f1, 6000.3.18f1
Not reproducible with: 6000.4.11f1, 6000.5.0f1, 6000.6.0a7
Fixed in: 6000.5.0a1

Reproducible on: MacOS 26.5 (M1)
Not reproducible on: No other environments tested