Figured Bass disappearing - probably a bug

Hello, my score contains an Organ player and a Violone (Bass) player.
The Figured Bass shows up in both systems in the score:

If I hide the complete upper system of the Organ part (Layout Options), the Figured Bass in the lower system disappears:

How can I make sure, the figures show up in my score?
Thank you for help.
Figured Bass disappearing.png
Figured Bass.png

Because figured bass are global items by default, they are attached to the instrument rather than the specific staff. At the moment there’s no workaround for this, other than to use an instrument that has only one staff to begin with.