I've been playing for almost 30 hours and just realized my achievements are bugged. Some worked at first, but I'm level 30+ and I'm missing the achievements for levels 5, 10, and 20.
It's not a big deal, but it's strange. Anyone else have this problem?

Okay, so with the latest update, I loaded my save and all the achievements popped up at once. So I understand it was a problem and it's now fixed.