Hi Phil,

Thanks for your message.

This is not a known issue, and based on your description, it is most likely related to caching or optimization rather than the menu itself.

Since unpublishing/republishing and clearing cache temporarily fixes it, we recommend checking the following:

• Disable Joomla cache and test
• Clear all caches (Joomla + browser)
• Check Helix template settings for CSS/JS optimization or caching and disable them temporarily
• If your server uses caching (LiteSpeed, Cloudflare, etc.), purge or disable it for testing

Also, please ensure:

• Menu items are assigned correctly to the menu module
• No access level or language settings are affecting visibility

If the issue persists, please share your site URL so we can investigate further.

Thanks