I attempted to use anchor links to navigate a single page theme (e.g., "/#pagename").
This worked on desktop resolutions, but the mobile navigation would not register the click and send the user to the anchor. It simply closed the menu.
I overwrote the normal anchor behavior by using CSS Tricks "Smooth Scrolling" inside my Site Footer Injection:

<script>
$(function() {
$('a[href*="#"]:not([href="#"])').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
var target = $(this.hash);
target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
if (target.length) {
$('html, body').animate({
scrollTop: target.offset().top
}, 1000);
return false;
}
}
});
});
</script>


Also located here: https://css-tricks.com/snippets/jquery/smooth-scrolling/

This fixes the issue.