Strange one this!
I've got 6 pages in a submenu, but one of them is appearing twice.
Anyone have any ideas? I've attached a couple of screenshots to show what I mean.
Is your menu set to „manual“ and one page is included twice unintentionally?
If not: Can you please delete all(!) content of all(!) pages and share this reduced .muse file with us, using Dropbox, CC Files of a similar file sharing service?
I uploaded the site again and it disappeared!
Seems to be okay now, so it must have been a glitch.