No Flights Modes Appear in Mission Planner

Hello to everybody.
I’ve got an hexacopter, I install mission planner 2, I install the copter 3.4.2, with a pixhawk, I can calibrate all OK, but when I reach to the flight modes, all of them are blank, I can’t choose any.
Are anyone know what happends,I try to install some different mission planner, but there aren’t no method that the flight modes appear.
Thank you for your replays.