Unable to Edit Main Navigation Drupal 8 I installed a custom theme called StartupGrowth. At the moment, I am trying to edit the main navigation. When I go to Structure->Menus->Main Navigation and disable the unneeded entries, they do not disappear from the navigation. However, if I add a new entry to the menu, it does appear. What's more, when I attempt to delete the entry added by me, it persists in the navigation just like the other ones.

What am I missing? Is there another place for editing this menu? Or does this sound like a bug in the theme itself?
It's kinda hard to test for the ones not having this theme.

Looking at the demo for the theme I can see it is using Superfish module to display this menu.

So, after removing the menu element try to flush the cache (from /admin/config/development/performance). If still doesn't work, go check on Structure->Blocks and see the superfish block... click on configure and be sure it is using the same menu. You have more settings in there, and you can look into the module (Superfish) settings, too.