1. When on https://www.topcoder.com/challenges click "More" -> click "Explore" -> try click on "TCO" link is not working.
2. Blog link under "More" -> click "Explore" is not working. Shows 404 error instead of the blog

Note: When you resize the browser window, and access the menu items by clicking "More", one of the level 1 menus are already selected (even though the user has not yet navigated to it) and the user is not able to access that particular page.