Description of Issue
Customers without a payment method, either because they were new or they did the 'change card' action, were unable to complete their payment. The customer would be asked to add their card again.
Cause
This issue existed previous to our latest release, but was made more prominent with our latest deployment. Ultimately, there was an action on the client side (browser) that was failing to reliably execute and add the payment method to the payment request (conversation).