Pointer? I had many booked award flights over the next 2 months with AA and AS on JL - up until a few days ago they were fine on both the ticketing website and JAL. Then notices like you reported appeared - and the flights also could no longer be booked on the dates in question. (in your case it sounds like they are discontinuing the flight at some date between now and when your booking occurs). I had bookings on sfo-hnd in F on flight 57 - a while ago they changed the plane from 3 to 2 class so no more F class - hence my bookings also errored and had to be changed.