Originally Posted by iamtfc
It's glitched atm. I wasn't able to find a work around. I wouldn't let it stop you. There are so many easy ones to go for. On top of that, the achievement popped for me on 66 gold (or there about). It's kind of annoying, but at least it's still doable.
I was able to get gold on Something Sensible & The Time's Come, optional endings this Tuesday, seems like the Tuesday patch fixed it.