Jira links button on the top of the Confluence page is either not created or not updated

Summary

When in Jira, in the old issue view, you add a link to a Confluence page, the Jira links button on the top of the Confluence page is either not created or not updated (depending whether it was already there or not).

Environment

Newly created instance

Steps to Reproduce

1. In a new instance, in Jira, disable the new issue view and then create a new issue in a classic scrum project.
2. In Confluence, Create a new page (e.g. in your personal space).
3. Link the new issue with the new page from the Jira (old issue view: issue links -> link to Confluence page).

Expected Results
The Confluence shows the "Jira link" button on top of the page pointing to the url of the Jira issue.

Actual Results
In Jira, you see that the issue is linked to the Confluence page, but on the Confluence page, there is no "Jira link" button on top of the page pointing to the Jira issue.

Workaround

Add the Jira link to the Confluence page.