Empty groups on XWiki.XWikiAllGroup, XWiki.XWikiAdminGroup and XWiki.XWikiGroupTemplate

In the default wiki, on http://localhost:8080/xwiki/bin/inline/XWiki/XWikiAllGroup, there are 12 empty groups that are rendered as "WebHome" and without links... Same is happening with XWikiAdminGroup and XWikiGroupTemplate