Hello, After upgrade the dicource, the plugin of Automatic TOC was disappear all topics. Could you advise to fix it of theme “Horizon”?

@bck055 I think I know what the problem is. Nested replies enabled causes the TOC to not show up. Normal topic with TOC: [image] With nested replies enabled: [image] I suggest you disable nested replies on the affected topics and try again. Admin wrench > Disable nested replies. [image]

DiscoTOC is not a plugin, but a Theme Component. Is it currently installed at /admin/config/customize/components? If it is, could you send a screenshot of what you’re seeing? If not, install the plugin by clicking this: Install the DiscoTOC theme component

Installed but not appeared. Do you have any ideas?

Yes, after change theme and un appear

So the TOC only disappears on the Horizon theme, but works on other themes? That’s odd. I cannot reproduce this behaviour here on Meta. Can you send the link to your forum if possible? Or a screenshot of this problem? Thanks.

Nice Thanks for your support and fixed the issue.

Fix issue of TOC plug disappear

Product Support

NateDhaliwal (Nate Dhaliwal) October 10, 2026, 12:38pm 4

Odd. Does it work on other themes? Or does it only fail on Horizon?

Topic		Replies	Views
DiscoTOC not showing in composer after latest component update Bug disco-toc	8	766	October 21, 2023
DiscoTOC - automatic table of contents Theme component official , disco-toc	147	65174	October 21, 2026
DiscoTOC option missing from gear icon menu Product Support	7	640	October 21, 2022
TOC missing after using browsers back button Bug disco-toc	7	678	January 25, 2024
The DiscoTOC disappear in some users' view Product Support	3	484	February 3, 2023

Fix issue of TOC plug disappear

Related topics