I have a Drupal 7 website. I am using Responsive Dropdown Menus module to main responsive menu. It is working fine on all the pages expect 2-3 pages.
Then after digging more, I realized it does not work on the page I have views block with exposed filter functionality on and AJAX on. I guess there is some interference between views AJAX and jQuery not working fine.
I could resolve this issue by updating to the latest stable version of views. Just in case, you are struggling with same issue, please update to latest version of views module.