We released a hotfix to bring back the achievements. Sorry if you had issues with getting them in the last 24h. Now it all should work. Though we are still checking if there are more issues related to that.
The main problem was with us updating the underlying engine to fix many other issues that people were encountering with the game. Especially with Windows 11.
Please let us know on Discord or Steam forums if you still have issues.
Hotfix v2.0.17
Source: Steam Community (opens in a new tab)