Hello Baristas!
We have a new patch for you live, which fixes the old achievements not syncing into Steam's backend. If you had this issue, you can reopen the game to sync your achievements on Steam.
Thank you for being patient <3
Cats & Cups v1.0.2 - Achievement Fix Update
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.