I'm having the same issue. Haven't seen sapphire hamlets near my castle for weeks. My Eagle's Nest is a level 20/22 and my castle is a lvl 82.

What have the sapphires disappeared?

Alina Bright said:

Hi there!

Please notice that it depends on distance. If there no Hamlets in your map sector, you won't be able to see them. 

Yes, obviously. But if one's Eagle's Nest is upgraded to the highest level it can be without using expensive sketches, shouldn't the game for the sake of fairness distribute at least a few sapphire hamlets at a range that the Eagle's Nest can see them? One would imagine that the game code can distribute hamlets in such a way that there are at least a few at a distance from all castles, at least the ones that have an Eagle's Nest upgraded to its maximum level. I can understand that sapphire hamlets are out of range for a few days, but for me it's beginning to be around a month now, which makes it seem more like a permanent bug instead of a temporary hamlet drought. Now the only place I can get sapphs from in game is from tournaments, which means I have to wait for them to finish to get the rewards.