The recent update had a bug that caused achievements to not activate. The problem has been corrected and they should be working normally for everyone now. Apologies and please don't hesitate to reach out to us if you run into any issues!
-Vanis
Achievement Patch
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 12858824 · public branch
Steam updated · First observed