[1.1.92] [Resolved] Multiplayer 'Core mod CRC check failed!'

[Moterius]

Testing with a few different parameters, all connection attempts fail with the message 'Core mod CRC check failed! Core game data does not match the expected content.'.

Originally, i assumed this was an issue with mods, but no matter what I did (standalone, steam; modded & vanilla) it failed with the same error message.

Update, and fix for anyone this happens to:

Re-install the game. Your base game files have changed, and as such the connection is refused since the code may no longer work the same on both clients.