A few days ago, Microsoft released an update for Windows Server Update Services SP2.

There are two main fixes in this update:

  • System Center Update Publisher does not publish customized updates to a computer if WSUS 3.0 SP2 and the .NET Framework 4.0 are installed
  •  “Metadata only” updates cannot be expired or revised in WSUS 3.0 SP2

Download it here: http://support.microsoft.com/kb/2720211/en-us?sd=rss&spid=13876