Issues have been "Done" for months now, without updates, yet they stay visible on our board with no way to remove them. My understanding is that Issues are meant to disappear after 2 weeks of being in the "Done" status.
Maybe it's because the tickets were migrated from another board to this board and there's some secret internal field used by next-gen boards that these migrated tickets don't have?
Any suggestions for being able to remove the tickets from the board? Deleting them is not an option for compliance reasons.
Edit for clarification:
The "Done" column is the column on the far right.
An example ticket (PL-137) not removed and still visible on our board has "Updated January 10, 2019, 2:49 PM" as the last updated date/time, so is well over the 14-day mark.