Current Active Kanban board with swimlane set to EPIC and two filters
Working well is the #1 group by Epic level (since Swimlane is on Epic).
Not working Assignee's #2 group (because the Swimlane setting is on the Board level rather than the Epic level)
Thus, if I alter Swimlane's settings, only one will function properly.
I was seeking a comprehensive answer and a single board with statistics.
One filter is used at the epic level (to manage updates on the status of project-level stories), while another is used at the assignee level to balance team members' workloads.