USPS Rate V4, Intl Rate V2 (official support thread) in Shipping Modules Posted April 23, 2015 the post above won't let me edit it so I figured out the problem by checking my other site that uses the same shipping addon... the install directions say: // USPS START // $contents = array('text' => '<br>' . $keys); $contents = array('text' => '<br />' . preg_replace(array('/RM/', '/TM/', '/International/', '/Envelope/'), array('®', '™', 'Intl', 'Env'), $keys)); // USPS END but the <br> in the first line doesn't have the "/" (it should be <br />)... I went through hell and even got a new user ID and it was the one little "/" causing all the problems. so if anyone has everything set & edited correctly but keep getting the "array" showing in place of the weights that should be there make sure you check this one piece of code.