User blog comment:Tama63/Staffing Bug Fixed/@comment-185399-20110918141849

I'm sure it will get fixed eventually, although it seems to be a particularly complicated problem. Most people are finding that it's an intermittent problem though, and if you send no gifts, neighbour invites or staff requests for 48 hours (and ignore all incoming ones), then try staffing the buildings again, it will often work. Having said that, I still have 1 building I can't get staffed, so it's not foolproof.