Fix Skins

1. 1

   Open Rust's folder

   Right-click Rust: Manage›Browse Local Files

   Go up two folders, then into:

   steamapps\workshop\content\252490

   Leave it open.

   
2. 2

   Quit Rust and Steam

   Steam›Exit

   Closing the window is not enough.

   
3. 3

   Empty the 252490 folder

   Want a backup? Move it all outside workshop instead.

   
4. 4

   Delete one file

   appworkshop_252490.acf

   One folder up, in workshop. Or move it to your backup.

   
5. 5

   Clear Steam's download cache

   Start Steam: Settings›Downloads›Clear Download Cache

   Then sign in again.

   
6. 6

   Verify Rust's files

   Right-click Rust: Properties...›Installed Files›Verify integrity of game files

   Rust stays closed. Wait until it finishes.

   
7. 7

   Restart Steam

   Steam›Exit, then open Steam again.

   
8. 8

   Play

   Launch Rust and rejoin the server.

   Skins download again. Give it a minute.

   

This has fixed it for affected players so far, but it is a troubleshooting step, not a guaranteed fix for everyone.