No more fast goldmines?

[Wreckless-]

I have 3 explorers looking for fast goldmines all day, but I didn't find a single fast gold mine. Is that just bad luck? Or is it a bug?

[SmurfAsH]

I've also been unlucky with my geos today when it comes to goldmines..

..but now I found a fast one.

[Dorotheus]

Took me nearly 3 days to find a fast gold deposit back when the SGM was introduced.