Mobile Menu not visible on some pages

Hello

There are 2 pages on this website
https://neeralta.wpengine.com/
that uses your mobile menu plugin but are having problems.

https://neeralta.wpengine.com/news/
https://neeralta.wpengine.com/used-equipment/
If you view these pages on mobile, the menu will not display.
The menu is showing fine everywhere else.

The page I need help with: [log in to see the link]