+xYou would need to contact support so that can investigate. Take a look at the flight profile in virtual radar, especially the climbs and descents, which might give a clue. Also perhaps you've set specific power settings per leg, so changing the initial/overall power setting has no effect.
"Also perhaps you've set specific power settings per leg"
This is exactly what happened. I don't know how, but that was the problem. Thanks for helping me out!