Flexslider has a callback API where you can execute functions after various actions:https://github.com/woothemes/FlexSlider/wiki/FlexSlider-Properties
I would check out the after callback and possibly the start callback and call refresh from there. For example:
$('#secondSlider').flexslider({
animation: "slide",
directionNav: false,
controlNav: false,
start: function() {
$.waypoints('refresh');
}
});
$.waypoints('refresh');必须加
