I got it, thanks @liirogue .
If you were getting the “too many requests” error today on Android, grab the latest version with the fix.
I was, and I did. This morning I had 25 pictures available.
Nigerian Air Force is up. This is the hardest for the Bullseye trophy, I think:
It’s near Abuja.
And a flight from Cape Town to Antarctica:
After a week of frustration I managed to get Antarctica yesterday; I was fortunate to find a rare down-bound aircraft that had its destination airport reported while in flight.