I have a problem with the refinement panel in a basic search center on a SharePoint server 2010.
The "Site" refiner used to work as expected but have now stopped showing sub sites as refiners, it only shows the top domain site and after pressing the top domain link no sub sites shows up.
Before I noticed the problem with the refiner I had upgraded the SP-server to Service Pack 1 and July 2, 2012 Cumulative update. But I’m not sure this caused the problem because I don’t have any problem on my development server with the same updates.
I've tried to recreate a new search center but the problem is still there.
Would be very happy if anybody have any ideas of how to solve the problem.