MR Multiplayer Tabletop Template contains a lot of unused and broken scripts related to Chess

How to reproduce:
1. Create a new MR Multiplayer Tabletop Template project
2. In the Project window, go to Assets -> MRTabletopAssets -> Games -> Chess -> Themes_old
3. Observe all scrips in that folder

Expected results: The scripts are loaded
Actual results: None of these scripts can be loaded and consequently not used in the project

Reproducible with: 6000.1.0b13

Reproducible on: Windows 11 Pro
Not reproducible on: No other environment tested