Braintree "Place Order" button is disabled after failed validation

[ifekaj]

Preconditions

1. Magento 2.2.2
2. PHP 7.0.25

Steps to reproduce

1. Add product to cart and proceed to checkout
2. Fill all customer data and select shipping method. Proceed to payment
3. Select Braintree credit card payment method
4. Input credit card number (dummy)
5. Omit expiry date or cvv
6. Click "Place order" button
7. Error "Payment Credit Card (Braintree) can't be initialized" briefly appears
8. Input expiry date or cvv
9. "Place order" button is disabled/not responsive

Expected result

1. "Place order" button can be clicked and order placed

Actual result

1. "Place order" becomes unresponsive/disabled

Please note that if I input correct expiry date and cvv, order goes through correctly.

[magento-team]

Hi @ifekaj. Thank you for your report.
The issue has been fixed in #12902 by @joni-jones in 2.2-develop branch
Related commit(s):

• 0c5cb6a

The fix will be available with the upcoming patch release.