If you encounter a problem with mouse and/or keyboards not responding in-game but they work on either the menu screens or the Steam overlay, please try the troubleshooting steps below:
- Disable Steam Cloud.
- Delete all files in Steam\userdata\SteamID\AppID.
- Start the game to create fresh (and thus different) new files.
- Exit the game and Steam.
- Delete remotecache.vdf in Steam\userdata\SteamID\AppID.
- Start Steam.