Does the elevator comp correctly? Before you swapped the orientation that is.
If it were me, I wouldn't like running with orientation set wrong. It would bug me. I would factory reset the ikon, double check that the servos are in the right place. ON the iKON with the elevator servo in the rear, Right side aileron is servo 1, elevator is 2, and left side aileron is servo 3. I have seen comps be wrong when 1 and 3 are mistakenly reversed. But this will also throw off your servo travel directions.