Using Moodle 3.6.2+ (Build: 20190301)
I tried (in Boost) to use the example given here:
https://docs.moodle.org/36/en/Theme_settings#Custom_menu_items
I literally copied the example:
Moodle community|http://moodle.org
-Moodle free support|http://moodle.org/support
-Moodle development|http://moodle.org/development
--Moodle Tracker|http://tracker.moodle.org
--Moodle Docs|https://docs.moodle.org
-Moodle News|http://moodle.org/news
Moodle company
-Moodle commercial hosting|http://moodle.com/hosting
-Moodle commercial support|http://moodle.com/support
The main menu item works, the first submenu item works, but the sub-sub item doesn't work. The italic lines above will not be in your menu.
Can anyone confirm this?