Redwood - New Succession Plan - Business unit field not working for 'View incumbents'

I'm testing out the Redwood design for Succession (in 24D), and have found that when creating a new Job plan, then click on 'view incumbents', it is ignoring the business unit I have entered and showing me options from all countries. This is different to how it currently works in responsive, where it would just show me people in that business unit.

Has anyone else noticed this issue? Is it intended to work like this, or do I need to change something to make it work?

thank you