Asking support questions on the foreman-users mailing list or #theforeman IRC channel is usually best, there's a bigger audience of people ready to help.

Out of sync hosts means no reports have been received lately from those two. Check first if any reports are listed for the host (be sure to clear the "eventful" search) and if not, check the Puppet agents are running and that they show no errors if you run by hand.

no reaction, closing.