I have done that. The BuddyPress registration form is overriding WP User Frontend registration form. When I deactivate BuddyPress, it works.
The only time I can get it to work with BuddyPress is active, is on a mobile screen, while a user is logged in but doesn’t have a subscription yet.
I need it to Register and Subscribe at the same time. I’ve followed all the instructions for setting it up in the documentation.
I’m running the pro version of WP User Frontend. I’ve tried changing the theme as well. That didn’t help.