Fullpage.js + Background video

@samliew Thank you so much for your help!

@matt-hew It seems that you combined the scripts.
Simply separate:

<script>
$(document).ready(function() {
	$('#fullpage').fullpage({	
        scrollingSpeed: 1000,
        navigation: true,
        slidesNavigation: true,
	});
});
</script>

AND

<script>
$(document).ready(function() { 
    $('video').each((i,v) => { $(v).attr('data-keepplaying', ''); v.play(); });
    $('#fullpage').fullpage();
});
</script>

This is how it worked for me. Hope it helps.