A330-300 RR Problems with managed modes and flight plan following

[Dogfergus3400]

Hello I have been having problems with the A330-300 Rolls Royce Variant The steps I take when I use this aircraft are as follows I import the simbreif flight plan into the simulator, I start the flight at the gate. The aircraft imports an incorrect flight plan into the MCDU so I have to go in Sec flight plan to import the correct one. Taxi and Takeoff is fine but when the HDG selector is in managed mode it does not follow the flight plan and goes in circles. I've tried using DIR-TO but that does not work. I've attempted multiple times but it just doesn't work. Am I doing something wrong I'm open to suggestions Thanks