Some Epics not visible in my Scrum Board

[Martin Fanta]

Hello,

We have a Scrum Board defined in our Jira v8.5.12 instance.

The filter query for the Board is quite simple:

labels in (my_label) ORDER BY Rank ASC

When I open the Epics sidebar in the Scrum Board, I'm seeing some Epics with the given label, but not all of them.

Could you please advise me, why some Epics might be missing?

Thanks

Martin