When you modify the order sizes for futures trading from the ludicrous default settings of 10%, 20%, 30%, 50%, 70%, and 100% (like seriously who uses 100% for a futures trade ever) Every time the browser refreshes the settings are reset to these idiotic defaults. Either make the settings persistent even if the browser is refreshed or change the default values to something reasonable like 1%,2%,3%,5%,7%,10%