Verify game files or restart Steam to get the update.
Fixed: Bug that prevented people from getting 2 of the achievements due to being stuck at 23/24 completed games before Hotfix #1 was out.
Launch Hotfix #2
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.