Finally found a way around it, with this script:
jQuery(document).ready(function($) {
$('#videoverlay').on('av-video-loaded', function(e){
setTimeout(function(){
$('.avia_playpause_icon').css({'display':'block'});
document.getElementById($('.av_youtube_frame').attr('id')).contentWindow.postMessage('{"event":"command","func":"pauseVideo","args":""}', '*');
}, 500);
});
});
