Apparently it’s an issue with Yootheme’s buddypress compatibility plugin (called Warp Buddypress). If I inactivate this plugin i do see buddypress pages, as you can see on this other site with buddypress and a yootheme template installed : http://www.v-les-visiteurs.fr/members. As soon as i activate the plugin, the template shows correctly but no Buddypress pages
Well, I guess it’s an issue with Yootheme, and my subscription just expired so I can’t ask for their support…