fullpage js scrollOverflow is not working when scrollBar is set to false

Question

I have a section which has some content more that the viewport height. The fullpage.js option scrollOverflow is set to true but always the output is force me to use scrollBar to false then the section became scrollable. But if I set scrollBar to true then the section is not scrolling anymore. I need to keep the scrollBar to true for some jquery wheel animation.

This is the code I'm using:

`

var myFullpage = new fullpage('#fullpage', {
        licenseKey: '67582BFF-B4A142AC-ABCE62BE-45C58F1F',
        sectionSelector: '.section',
        scrollBar: true,
//      fitToSection: false,
        scrollingSpeed: 1300,
        bigSectionsDestination: top,
        css3: true,
        slideSelector: '.slide',
//         normalScrollElements: '.normal_scroll',
        scrollOverflow: true,
        scrollOverflowMacStyle: true,
        onScrollOverflow: function(section, slide, position, direction){
            var params = {
                section: section,
                slide: slide,
                position: position,
                direction: direction
            };

            //console.log("--- onScrollOverflow ---");
            //console.log(params);
        },
        //controlArrows: false,
        loopHorizontal: false,
        responsiveWidth: 1025,

`