Losing Epics in Backlog

[Deleted user]

I have an Scrum board and I want to filter tickets that belong to Epics with certain labels, so I'm trying something like:

issueFunction in issuesInEpics("labels = MyEpicLabel").

But looks like whenever I use issueFunction, I'm losing the Epics in the backlog. They don't show the Epic tag and they are not listed in the left panel.

This article suggests to add "Epic" to the filter, but I would like to add tickets to the board automatically when I add the label to the Epics.

Can you suggest?