Aero-M RC Flight Modes Unrepsonsive

I’ve been having issues with my Aero-M drone particularly with the flight modes. It seems to be stuck on one flight mode in this case RTL and when I try switching flight modes with my controller it does not respond on the mission planner or the drone. Also during preflight checks the drone sort of responds when moved up, down, left, right, etc. however when pulled forward the propeller does not respond I’m not sure what to do and any suggestions would be most welcome. Thanks.

@,
Have you followed these ArduPlane Wiki instructions: http://plane.ardupilot.com/wiki/common-rc-transmitter-flight-mode-configuration/
Regards,
TCIII GM