Links to Confluence pages broken or not appearing on new and old issue view

Issue Summary:

Broken links to Confluence pages are not visible in the new issue view. In the old issue view the error "wiki page failed to load" is displayed instead of the link.

Steps to Reproduce

1. Open an issue
2. Link a confluence page in old or new issue view

Expected Results:

Ideally, the confluence links should have been visible as expected in the old issue view and new issue view

Actual Results

In the new issue view, sometimes the confluence links are not visible at all, some other times they show an error message like the one in below screenshot:

In the old issue view, a "wiki page failed to load" ** error is displayed.

Workaround

Sometimes this issue is caused by some leftover Application Links pointing to an old Confluence site and it is enough to remove those application links by following the steps in: How to Remove Application Links via REST API

However, in case this won't work, you may want to Contact Support in order to have this issue addressed.