In looking for a solution for my issue, I found this bug report: https://jira.atlassian.com/browse/CONFCLOUD-82050
This aligns with the exact issue I am facing:
While the workaround is to remove colons from parent page titles, this does not work for us as our knowledge base is well over a thousand articles deep across multiple spaces, and using a colon in our titles has been the standard for years. The amount of work it would take to update these is not feasible.
Is there an ETA on how long "Short term backlog" issues wait to be addressed?