Having issues with using keyboard and mouse on the mobile version

I am using right now the same mouse and keyboard on my Android to write this issue. 

When i enter the game it works normally, loads the world then it happens. When i am in the world, looking at the hand of my player, if i try to use any command assigned to any letter on my keyboiard like, WASD to walk, É for inventory, Q to drop item and for some reason space too, they do not work. If i try shift, Esc, Tab, the arrow Keys, they do work. 

To see if it was a compatibility problem i openned a book and ink in game and try to write, and it works, every single letter, i close the book, no walking or jumping. 

Am i doing something wrong? Help?