Thread:Support/Problem in rendering message activeusers-count/cy

The Welsh version of MediaWiki:Activeusers-count/cy?action=edit in Special:ActiveUsers is not outputting the number 30 given by the variable $3. This problem doesn't occur in a few other languages I have displayed. Anybody know why? Have checked that MediaWiki:Rcnote/cy displays properly so it isn't a problem with the display of all Welsh plurals.