A red OEB was re issued for this problem around a month or so ago following an inflight upset on a lufthansa A321 near Bilbao. This was distributed to all bus operators worldwide so one would hope that this was not the cause of the QX flight. However it is up to the airlines to pass this info on to their line pilots. However as this problem had occurred a couple of years back, one would have hoped that faced with the situation they would know what to do.