Zend certified PHP/Magento developer

Magento 2 menu.js doesn’t get loaded

The page contains the following HTML Element:

    The file requirejs-config.js contains the following entry:

    "menu": "mage/menu",

    As far as I understand it, data-mage-init will cause the menu widget to be instantiated, and the requirejs-config will make sure that the file mage/menu.js will be loaded as a requirement.

    Unfortunately, this does not happen on the start page. It works correctly on all other pages. I suspect a third-party module. But I don’t see any errors in the console.

    How can I debug this?