[Membership 2 Pro] Login using shortcode won't redirect to BuddyPress profile URL

I have a custom login page using the following shortcode:

[ms-membership-login register="no" show_note="no"]

I'm trying to redirect users to their Buddypress profile page, and am using the redirect add-on. I've set the login redirect to be .../[username]/profile, as it suggests in the instructions, but it's literally rendering the [username] shortcode, and not substituting the user's actual username.

I've disabled all plugins, w/ the same results. I've also tried using the shortcode attribute "redirect_login=...", but that doesn't work either.

Notably, the redirect renders perfectly when using the default WordPress login form; it just doesn't work with the shortcode login form.