Navigate to Advance Settings (click the clock square -should you be using Minix Metro, or find the Settings cog icon in the All Apps separator and in there find the square for Advance Settings) and in there look for Language and Input, in there scroll down to the separator Physical Keyboard and check if you have in MemsArt RF Controler anything different from Default.
If you do, click it twice to access Set Up Keyboard Layouts and unmark anything that might be marked there in order to revert those settings to Default.