Are you using & ? By the looks of it you're using a character that is unrecognized, hence giving the boxed question mark.
Try copying this & and using it instead. If that doesn't work, try this symbol §instead. If that doesn't work either, check your config for anything that might be disabling color codes.
lo que necesito son alguno de los schematics que vi en nullebuilds... asi que supongo que tendre que conseguir el premium de ahi ya que lei que los mantienen por separado.