Having just upgraded JIRA from 6.x to 7.x (in place upgrade) I notice that several issues aren't displaying the Development panel in multiple projects.
I've tried re-indexing and recreating the Application Links to Bitbucket, and I can't find the pattern of why some issues are missing this panel. For example it's affecting multiple projects, but not every issue in that project.
However, when I use the JQL issue.property[development].openprs > 0, I can see that clearly these issues still have their Pull Request data, but it's just not showing on the issue screen.