I have re-enabled the plugin to show you an example. If you go to https://www.igpmetals.com/product/custom-franklin-half-dollar-ceramic-mug/ you will see option for a 15oz. Mug or and 11oz. mug. If I calculate shipping on the 15oz. mug, should be 9.69 and then change the option to 11oz. mug shipping and recalculate shipping, it does not change to the 6.89 it should be. The cart seems to get it right every time though. This is most like due to a full refresh. If you don’t mind, play around with it and let me know what you thin. Thanks,
Kevin
