Reproduction steps:
1. Create a new project
2. Create Shader Include Importer Asset (Create > Visual Effects > HLSL File)
3. Click on newly created Shader Include Importer Asset
4. Click on question mark icon in the Inspector

Actual result: “Sorry... that page seems to be missing!” Page is opened
Expected result: Shader Include Importer documentation page opens or there’s no question mark icon in the Inspector

Reproducible with: 2022.3.68f1, 6000.0.60f1, 6000.2.10f1, 6000.3.0b8, 6000.4.0a3

Reproduced on: Windows 11, macOS Sequoia 15.4 (M4)

Note: Issue is also reproducible with Visual Effect Defaults and Point Cache Assets