World name: Faerie
Character name: Furil Lolianna
Class/Level: Botanist 70
I level botany to 70 and it gave me the achievement for level 70 miner "Breaking rocks in the hot sun VII" instead. The achievement for level 70 botany is still locked. I don't even have miner.
Looked at the accepted bugs section, looks like miner is having the same problem.