Scheduled Issue can expire only if you've defined a custom Trigger end date (the default setting is set to never expire). The "Expired" state (1) indicates that according to the Trigger definition, this Scheduled Issue will never be executed againusage has ended. That being said, you can still execute this Scheduled Issue manually (2), or edit it (3) to modify the Trigger so that the Scheduled Issue can be executed again automatically.
...