Hi,
this is happening because of small z-index on menu header.
We already made this little fix and the update will be released in couple days.
You can fix it really easy, just go to style.css file and in line 1202 there is a code
looking like this:
#ABdev_main_header.default, #ABdev_main_header.header_layout_1, #ABdev_main_header.header_layout_2, #ABdev_main_header.header_layout_3, #ABdev_main_header.header_layout_4 {
padding: 0;
z-index: 1;
width: 100%;
position: fixed;
background: #fff;
border-bottom: 1px solid #eeeeee;
}
just change z-index value into 9999.
That is all.