I used the new style to request recent changes, i.e.

http://en.wikipedia.org/w/api.php?action=query&list=recentchanges&co...

and then I simply copied the information <continue continue="-||" rccontinue="2013-04-02T10:26:26Z|567310672" />

to request the prev changes:

http://en.wikipedia.org/w/api.php?action=query&list=recentchanges&co... -||&rccontinue=2013-04-02T10:26:26Z|567310672

However, the results returned to me were not the correct rcid from 567310672

Is there anything wrong?

Thanks.