Fixed Invalid client data detected - cannot join servers

[Spaghetti]

Trying to collate an issue someone reported happening a few times:

• Was playing and got disconnected from the server (full authentic mode)
• Cannot join open mode servers after this, even after restarting the game (so likely something in the config file)
• Possibly observer related (model in config is observer/blue)
  • Player did not think they were the observer class in FA, but "maybe game threw me into spectator after a round limit was reached and wasnt fast enough to rejoin"

They resolved the issue by deleting their config file, which is attached.

Original Discord reports:

• Discord - Free voice and text chat for gamers
• Discord - Free voice and text chat for gamers