Hi everyone recently purchased a pixhawk (PX4FMU) autopilot board running on the rover firmware. I am encountering a problem with the navigation of the rover. After planning/making the rover learn a mission in mission planner and executing it in auto mode the rover drifts to the left or right and does not follow the waypoints correctly as it is supposed to. Just wanted to know is this a problem with the calibration of the compass or GPS or is there something wrong with the set parameters. Would really appreciate your help.