A client is using version 1.4.2 on ZC 1.5.5f and the Rewards Points plugin. The plugin works with regular checkout, but it will not deduct the order total with one-page enabled. Checking the box and clicking submit: http://prntscr.com/ju7ykq

caused the page to reload but the points/dollars are not applied to the order.

There are no errors in the console. I just see:
http://prntscr.com/ju7yqn

Being that the documentation says 1.4.2 works with the Rewards Points I'm hesitant to upgrade one-page.