Good evening everybody.
I bumped into the same problem with T3 more than once, I think that's time to share it.
Sometimes, when in megamenu, adding or removing columns and taking care of the layout of the menu and submenus, sometimes menu items get duplicated; and on the front end appear just like shown in megamenu, that is, just the double of the actual menu items.
I don't know what lead to this; in the past I got desperate and I deleted the menu items, all of them, and started all over; now I can't, they're too many and I need to understand what leads to this or in the future it may cause even bigger problems.
I'd appreciate any help.
Thanks.