In checkout page, while following each step(shipping,billing,payment etc) upto the confirm box, if the user wants to change the shipping method, he will click on above shipping method block and as usual continue to the next step. But while reaching the payment info block, the entered payment details were cleared. So the user forced to re-enter the payment details. why this is happening? Please help for any solution. We are using the 3.7 Nopcommerce version.