Hi @burt @cyberdave,
I had this same issue a while back and this worked for me:
// needed to use noConflict
$160 = jQuery.noConflict(true);
var Webflow = Webflow || [];
Webflow.push(function () {
// check is the CMS editor is there
if (Webflow.env('editor') == undefined) {
$160('#fullpage').fullpage({
});
}
});