[OSM-newbies] Missing islands?

[Tancredi Tincani]

I've been working on the OSM Caribbean fieldwork project
(http://www.pledgebank.com/osmfieldwork), and I noticed that a few of
the islands (notably Barbados and Antigua) are rendered without
coastlines in Mapnik. I check the coastlines, and they are going the
right way around, and form a closed loop. The Osmarender output
doesn't have this problem. Does anyone know what's going on?

Thanks!