Newly added navigation elements (spaces) disappearing

Problem

Some of the newly added elements (Confluence spaces) in the navigation are disappearing a few minutes after we've created them.

They also disappear for users who have enough rights to see the linked space.

Solution

You are experiencing the following bug: CSSP-321 - Getting issue details... STATUS

When a Confluence administrator who cannot see all Confluence spaces edits the navigation and saves it, Confluence spaces the admin does not have access to disappear.

Workaround
Make sure that the SubSpace navigation is only edited by users who belong to the confluence-administrators group and can therefore see all Confluence spaces.

Progress on the issue will be documented on the linked bug ticket.