http://blogs.msdn.com/maximeb/archive/2009/03/26/content-by-query-issue-with-audiences-filtering.aspxA few months ago, I came across this issue where the number of returned items in a query wasn’t as expected. Context with normal queries To contextualize, let’s say you have a home page with several articles section which are in turned served by Contenten-USCommunityServer 2.1 SP1 (Build: 61025.2)