Problem with multi-module site

I am using the site-maven-plugin (version 3.3) and cannot seem to get it to work. Using the exact same site.xml and additional files (faq, apt and xhtml types) that worked fine in a single project site, I am not getting breadcrumbs or custom menu items. I do get the submodules with their own sites, each of which is inheriting the reports from the parent, but that's it.

My (58K) project is at http://russgold.github.io/russgold/maven-video/sample10.zip

Thanks
Russ

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