Regio/ country selector on mobile not working Dawn 10.0

Hello,

i just downloaded Dawn 10.0. I added the regio/country selector, which is working fine on desktop. On mobile version, it is on the bottom when you open the menu. From the moment you want to select a country, the whole menu close down. This is also the case in the preview when I’m customizing my shop.
is this a bug, or do i need to adjust something?

It can be because of media query. So that its hidden for mobile version

@Twiggy

Please share your preview URL!

Thanks!