Why is Credit Card Information Blank?

[zkrebs]

I have verified my payment processor works/is enabled on a normal contribution page, but in Simple Donate I see this:

Drupal 7/CiviCRM 4.7.21/ Simple Donate 2.0

In the code, I see this
<li class="payment-processor-type ng-scope ng-hide" ng-repeat="type in paymentProcessor" ng-hide="type.hide">
If I delete ng-hide as class, it shows, but with a radiobutton for just my one payment processor. I must click it, then I see the fields! (by design?)

If I enable two payment methods, with one including Pay Later, I see this

Then, I can click iATS:

How can I get it to just load the first payment method automatically? Am I missing a config setting?