BuddyPress and Cannonical links

Hi team, this one's doing my head in...

Setup: Latest WP + BP + Yoast's WordPress SEO plugin.

The issue: The cannonical URLs of almost all BP pages are showing as the 'home' URL for that function, for example:
domain.com/members/ and
domain.com/members/admin/
both show the cannonical URL domain.com/members/

The same goes for domain.com/groups ... every single group, forum, topic, subpage ALL show the cannonical link as domain.com/groups or /members, etc.

This is obviously a major issue for search and for machine-readability in general. What's the deal, and what's the fix?