Membership signup page isn't loading

I'm beginning to think I'm cursed.

I've been trying to get subscriptions to work properly in Membership and today went to test again, just like I had yesterday. As usual, I started by creating a new username and password (not logged in and in a different browser), then accepting the TOS and clicking to go to page 2, where I'd select the subscription of my choice.

Except page two won't load. It looks like the attached, just stops rendering. So far I have checked:

- plugins - none new or updated since yesterday
- all subscriptions and levels activated and public
- gateway activated

I am cursed. :wink: