I've upgraded the stats tracking plugin to the newest version yesterday, which involved rewriting a significant part of my own tracking code. As a side effect, it appears to have fixed some achievements targets that were broken while I wasn't aware. As such, the next time you go in-game, you might get a few surprise notifications. It's normal!

Likewise, if you believe that you should have earned a specific achievement yet it didn't trigger, please get in touch with me so I can double check. Some corrections are needed once in a while.