# 3rd level category nesting and Header Categories Navbar TC interacting poorly

**URL:** https://meta.discourse.org/t/3rd-level-category-nesting-and-header-categories-navbar-tc-interacting-poorly/274131
**Category:** Bug
**Created:** [August 6, 2023, 10:36pm UTC](https://meta.discourse.org/t/3rd-level-category-nesting-and-header-categories-navbar-tc-interacting-poorly/274131 "2023-08-06T22:36:38Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![nathank](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/nathank/32/290039_2.png) [@nathank](https://meta.discourse.org/u/nathank)
#### Post date: [August 6, 2023, 11:29pm UTC](https://meta.discourse.org/t/3rd-level-category-nesting-and-header-categories-navbar-tc-interacting-poorly/274131/5 "2023-08-06T23:29:53Z")

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Ah - I’m being a bit thick and equated the new terminology for the sidebar “i.e. Navigation” with this #official theme component:

> [@Header Categories Navbar](https://meta.discourse.org/t/header-categories-navbar/249179):
>
> discourse2Summary Header Categories Navbar is a simple component that adds a menu of parent category links to the site header, with horizontally scrolling overflow added if/when needed.eyeglassesPreview [Preview on Theme Creator](https://discourse.theme-creator.io/theme/Discourse/header-categories-navbar)hammer_and_wrenchRepository [https://github.com/discourse/discourse-categories-navbar](https://github.com/discourse/discourse-categories-navbar)questionInstall Guide [How to install a theme or theme component](https://meta.discourse.org/t/how-do-i-install-a-theme-or-theme-component/63682)open_bookNew to Discourse Themes? [Beginner’s guide to using Discourse Themes](https://meta.discourse.org/t/beginners-guide-to-using-discourse-themes/91966) Instal…

When I disabled that Theme Component, nesting works just fine.

My only issue is that I really rely on it! But I understand that I’m probably one of very few using this TC with 3rd level nesting.

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