This extension is very used on the French Wiktionary, actually our team had never let even one edition not patrolled for three years.
But since yesterday, some pages are impossible to patrol, apparently for all of us. Moreover, sometimes we have to reload the pages through their history to see the link [Mark as patrolled].
I've checked all the Mediawiki pages and no one could has been changed this week.
Please find the list and discussion here: http://fr.wiktionary.org/wiki/Wiktionnaire:Wikid%C3%A9mie/mai_2013#Bug_de_la_relecture.