Select at least one ticket
Tickets list shows tickets.list.bulkSelectRequired when bulk close (or similar) runs with nothing selected.
Why this happens
Client guard before bulk actions. Sibling patterns: Select at least one file.
Diagnose and fix
1. Check one or more tickets in the list.
2. Retry Close selected (or the bulk action).
3. See Close failed if the API rejects after a valid selection.
4. See Tickets list and reply workflow.