Can you no longer get this or something? I just got Mott from the Pumpkin Patch but no achievement for it.

You can only get the minion achievements on the year the minion is released. There's a thread in Suggestions & Ideas to change it though Un-retire the Pumpkin Patch minion achievements

That seems pretty silly. I'll check the thread out.

It's how it's always been. New minion for the year means new achievement for the year. Kind of a bummer for the folks like me who never seem to get any minions out of the patch, but I'm kind of used to that luck by now...

I tend to go awol around site events, so I never realised. It's really kind of dumb since you can still find the minions but not get the achievements.