Stack Exchange network consists of 178 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
View all activity pages
I have had the same problem and managed to fix it.
Goto template managerand click the mengamenu link.
When it loads your menu, click the menu that has the issue so it shows the duplicates.
Then, turn ...