The solution probably just relates to the genesis prestige child theme but for completeness there was a conflict with jquery.custom.js which needed the following code removed.
/*————————————————-*/
// Mobile Menu
/*————————————————-*/
jQuery(‘.nav-primary ul.menu’).mobileMenu({
defaultText: ‘Navigate to…’,
className: ‘select-menu’,
subMenuDash: ‘ –’
});
At that point all the rich tablepress functionality reappeared.
Thanks, Rob