We have a team managed Kanban board

And create issues, often custom issues, from epics that we create via the roadmap
STUDY-172 is one such example, please note 'IDEA'

For completeness, of course 'IDEA' appears in the workflow

And when we switch to theBoard view, we see the 'IDEA' column
However issues that we have been creating recently are not showing up in that column. This happens both for standard issues and for custom issues that I have created.
Further when I search via the board for the issue I have been describing, it does not appear (though the containing epic does appear when I search for '172' via the roadmap)

There are no filters applying to the STUDY board, we have one for a different board though

What are we doing wrong, we have had this working before.... any help or discussion would be great please