Suddenly, our JIRA no longer shows branches, commits, and pull requests from Stash for any tickets. This was working fine until recently, possibly related to the updates to Stash and/or JIRA. This issue affects all tickets, even tickets that were displaying these data before. We've confirmed that the branch names, commit messages, etc. contain the proper JIRA keys, and Stash still shows the JIRA tickets when viewing commits and Pull Requests. This affects all users, and re-authenticating to Stash through JIRA does not seem to help.
What can we look at to help determine why this functionality that our developers have come to rely on has disappeared?
Jira v6.2.4#6261-sha1:4d2e6f6
Stash v2.12.2