Sidebar and sidebar icon does not appear after an upgrade
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Problem
After upgrade Confluence to last version, "sidebar" is not displayed, and the sidebar controller icon that should appear next to the search button is not displayed.

Diagnosis
Environment
You are using Documentation theme
You have the plugin Confluence Intranet Themeby Stimmt AG installed
Cause
The issue is caused by the plugin mentioned above is interfering with Confluence.
Solution
Resolution
Update the plugin to the newest version or
Uninstall the plugin
Should that does not fix the issue,
try
and see if the issue persists. This is because there might be other third party plugin that are causing interference to Confluence's core plugins, and thus causing this issue
Was this helpful?