I have an Epic called "Articles" that has gone mysteriously missing from the Epics menu on the right of my Backlog.
When I try to link a new story to it, it only shows up in the lists of Epics if I tick "Show done epics":

However, if I open up the Epic's issue itself, it says its Status is not actually 'Done', but 'Open'.

How can I get my "Articles" Epic to appear back with the others?