Justed wanted to give you an update on what we’ve found so far.
We’ve talked to WPE regarding the theme. We’ve since duplicated the site onto the staging area where there is no cache. It had no effect on the navigation menu issue.
Also, WPE had tested the site using the 2014 theme, and viewed it on the mobile. This worked with no issues. The other pages appeared as part of the navigation menu dropdown.