I am deploying two SharePoint solutions, so logically I have two layouts.sitemap xml files. One is called layouts.sitemap.projectname.xml and the second I called layouts.sitemap.projectname.subnamespace2.xml now I run stsadm -o copyappbincontent and notice only the second xml file was submitted. So I rename the files from layouts.sitemap.projectname.xml to layouts.sitemap.projectname.subnamespace1.xml and leaving the second layouts.sitemap.projectname.subnamespace2.xml after stsadm -o copyappbincontent now only the first xml file is submitted.... when I remove the projectname and rename them to layouts.sitemap.subnamespace1.xml layouts.sitemap.subnamespace2.xml the second xml file is working, how random is this!! So I got frustrated and merged the two files, now neither of the breadcrumb items are working....