What: Tickets disappear from the project's boards and backlog
When: switching the Field Configuration to another configuration (by editing the value in the Field Configuration Scheme space). EVEN WHEN replacing existing configuration with its own replica!
Note: I am still able to search for the tickets with the previous filters, and their statuses haven't changed. But they disappear from the project tabs (boards, backlog, etc.)
How can I change the field configuration and have existing boards and backlog showing tickets?