Please download the /code-snippets/code-snippets.php and remove the very first letter “q” from before the <?php opening tag. Upload it back and website will be fixed.
It can’t be a matter of who created a gallery. There is a list of galleries created by each administrator. But all but the very first one can not see the Galleries box on Menus page. (there are Pages, Links and Categories only)
Can I ask how this problem is solved?
My very first administrator account can see Galleries (post types) allowed to add to the menu. No other administrator accounts can see the Galleries box to be able to add galleries to the menus.
How can I allow all the administrators to add galleries to menus?