Studio CX
On my first CX Flights in First (FRA-HKG-AKL-HKG-FRA) the inflight entertainment system Studio CX re-initialized at least 2 times per flight. Forcing you to restart and slowly forward-wind the movie. (of course I would not have noticed this if I had not tried to watch all the movies)
Still very pleasant flights just this minor technical problem of the inflight entertainment system.