membership is not taking over registration page

If I click on the register link on the wp-admin login area, the link still goes to the default BP /register/ page which is never taken over by membership. I’m pretty sure it used to do that, probably before the latest upgrade but I’m not sure. Anyone else running into this?

i’ve tried using the same slug for my register page as /register/ but to no avail. currently it works by me forcing a redirect to the membership registration page.