"Keyword space mismatch" is thrown when using Sky and Fog Volume

Unity: Shader System

6.4.X

6.3.X

6.2.X

6.1.X

6.0.X

This version of Unity has reached end of life and is no longer supported.

How to reproduce:
Open the user's attached project

Expected results: No errors are thrown in the Console window
Actual results: "Keyword space mismatch" is thrown

Reproducible with: 6000.0.6f1
Could not test with: 2021.3.39f1, 2022.3.33f1 (compilation errors in the Console window)

Reproducible on: Windows 11 23H2
Not reproducible on: No other environment tested