"CMS" navigation item is missing from the custom admin page.

I referenced the following and created admin pages and menu items. But for some reason the top CMS menu shows in few pages and not in some pages.

https://world.optimizely.com/blogs/ryan-bare/dates/2019/7/new-cms-ui-navigation/

https://docs.developers.optimizely.com/content-cloud/v12.0.0-content-cloud/docs/adding-and-configuring-menu-items

Missing Page:

Working Page:

Missing these <div>