And know the biggest bug: I had some problems with OP CLB, OP DES and Alt hold. The aircraft was luffing a lot, sometimes up to +/- 10°. I made a video, available on
http://www.christophpaulus.com/files/fmgs.avi.
Another problem was when I selected 30000 ft (was on 28000 ft) the pitch extremly increased and I got a VS of around 14000 ft/min... After a few seconds the pitch decreased and the aircraft descended because I have been shot up to 31000 ft. But the VS mode works good, there are just a few problems if I change the VS. Then the aircraft starts to luffing again but stabilizes after a few seconds.