Within a project that has multiple parallel sprints and a board that shows 'all sprints', I want to show items specific to a sprint/sub project that contains two epics.
I want the swimlanes to be set to epics so that I can see the separation but also see the tasks under the stories in the swimlanes.
All I can think of is there is a double query of some kind happening that Jira doesn't like. Any ideas?
Most common reason I have encountered for issues not appearing on a column is the statuses not being assigned to a newly created column. You can check if any columns are without any status on the 'Column' option of the configuration.
You can try out other solutions too from this documentation:
Hope that helps!