I know the chances aren't meant to be low but I've had 31 failed Goldfield Breeds in a row now. Is there a problem or? Oh, and I'm using Drop Elemental + Erpham so it should be working.
I suggest making it 12-15, or just buffing the monsters themselves.
(I'll add this to bugs later but right now speeding up a rock that takes five mins for me now costs 3 gems not 1. Happening to anyone else?).