I have created Epics for each of my ongoing projects. (We are Next Gen)
There are five. Four have tasks.
Only two of them however, display on the Kanban.

I have tried selecting individual epics that appear in the filter. But this doesn't turn them on in the kanban view.

The only place I can get access to these is by going to Issues. Then filtering by Epic.

Our jira admin also has not been successful in locating a reason.