Checkout Total Not Updating On Use Of Reward Points

Hello, so I've updated to the latest version of cscart which has lite checkout, and I've noticed that there's now a Place order (x) button where x displays the value of the order. If you were to use your reward points then x does not update until you refresh the page.

Does anyone know how to make this auto update?

Additional: Customers are still asked to select a payment method once the order value has been set to 0 once reward points have been applied.