Wireframe Complexity vs. Sitemap Structure in Relume Sitemaps

Hello. Quick question. Just getting started with Relume Sitemaps and Wireframes. I am seeing that the Wireframes being generated dont match the Sitemap. E.g. I have a very simple sitemap with just three links in the nav — the home page has a branch under it that points to three pages — so those would be the links in the nav (i assume). But when i switch to the Wireframe tab and they are generated i am getting this overly complex nav with additional links and a drop-down. Shouldn't the Wireframe closely resemble the Sitemap structure?