Uncaught TypeError: Cannot read property 'split' of undefined

Since updating to Woocommerce 2.6.2 I’m getting an Uncaught TypeError coming from jquery.payment.min.js – when checking out using Stripe for Woocommerce. When I roll back woocommerce the issue goes away. Anyone have any idea what could be causing this? Here is the error log from the console when I try to submit a payment.

jquery.payment.min.js?3dd478:1 Uncaught TypeError: Cannot read property 'split' of undefined
a.payment.cardExpiryVal @ jquery.payment.min.js?3dd478:1
a.payment.fn.cardExpiryVal @ jquery.payment.min.js?3dd478:1
a.fn.payment @ jquery.payment.min.js?3dd478:1
a @ s4wc.min.js:50
dispatch @ jquery.js?3dd478:3r.
handle @ jquery.js?3dd478:3
trigger @ jquery.js?3dd478:3
a.event.trigger @ jquery-migrate.min.js?3dd478:2
triggerHandler @ jquery.js?3dd478:3
submit @ checkout.min.js?3dd478:1
dispatch @ jquery.js?3dd478:3
r.handle @ jquery.js?3dd478:3

https://wordpress.org/plugins/woocommerce/