It may be my Friday afternoon brain, but I can't seem to get this to work...
I see there is JQL available "Epic Name" in the quickfilter setup screen, but I can't seem to get the syntax correct to actually filter for what I am entering. What should the syntax be if the epic name is 'test' for example? I have tried both of these:
"Epic Name" = test
"Epic Name" = "test"
When I go to apply the filter, all issues are hidden and I get a message "Issues may be hidden by Quick Filters." The epic name in question is definitely viewable on the board (i.e. is part of the sprint) as I can click one of the issues assigned to it and see the epic label in the card preview over on the right.