That's extremely strange. Lets try a few things:
1. Start fresh by deleting and reextracting the game from from the .RAR All files are needed
RWBYFe.exe
RWBY_Config.ini (this one is very important)
RWBY_font_temp (folder)
2. Right click on game and select 'Run as Administrator'
3. Confirm you have selected: 'Controller Layout = Keyboard' in the settings menu
4. Confirm Keys have been assigned and are not listed as 'none'
5. Test game
6. If you are still having problems open the RWBY_config.ini with 'notepad' and copy the contents of it into a reply to this message.
Hope we can get you play :D