Main Menu Disappear after page load (Chrome & Edge Only!)

Hello, my main menu disappear after page load on some browser ex: Chrome, edge, and only on scenes over 24″ (!)
Testing with Firefox, everything works fine. site: investingate.com

Thank you,
— URI —

Hi

The menu it’s hidden because of an external css applied on its container. This css seams to be inherited in menu’s html structure. If you made any changes in header file try to revert them then test again. Also try o deactivate all plugins except Visual Composer, clear all caches and test again.
If you still manage to solve this issue use this css in theme panel > custom code > custom css: http://screencast.com/t/EVxtobc4jPtR

.td-header-main-menu{
visibility: visible!important;
}

Let me know how it goes.
Thanks!