The game is not generating firefighting missions

I’m pretty much finished with Career Mode at this point. The only reason I wasted so many hours on it was to unlock firefighting, search-and-rescue, and hook missions, which so far as I’m concerned should be available in free flight anyway. Thus far I’ve flown precisely two firefighting missions, and one of those was the introductory one. I’ve unlocked parts of Spain, Australia, Madagascar, Florida, and Arizona, and there’s been nothing in any of them for a week. Heli SAR missions have recently disappeared for me, too, not that those worked all that well when I did get to fly them. I guess I’ll have to settle for dropping water on imaginary fires in free flight for the time being. I don’t even care about unlocking crop dusting missions, since I can do those just fine in free flight. I need just one more successful heli mission to unlock the hook specialization, so I suppose I’ll give that a shot, but otherwise I’ve had it with this nonsense.