WP MS subdir: buddypress pages settings show parent site pages

I’m attempting to set up buddypress. This a sub-site where MS is in subdirectory mode.

On Dashboard>Settings>BuddyPress>Pages, the pages shown in the drop-down menus are the pages of the main site. It seems, on this page, to be unaware that it’s a sub-site. I can’t associate Activity Streams, User Groups, Members because I can’t choose pages that are actually part of this site.