Unable to move menu items after migrate from wp

[timkaye]

Let’s try re-writing the getPreviousSibling function! Could you replace the current function from line 1171 with this?

    function getPreviousSibling( elem, selector ) {

		// Get the previous sibling element
		var sibling = elem.previousElementSibling,
			matchingElements = document.querySelectorAll( selector );

		// If the sibling matches our selector, use it; otherwise move on to the next sibling
		while ( sibling ) {
			for ( var i = 0, n = matchingElements.length; i < n; i++ ) {
				if ( sibling === matchingElements[i] ) {
					return sibling;
				}
			}
			sibling = sibling.previousElementSibling;
		}
	}

Note: you will need to make sure that your site has define( 'SCRIPT_DEBUG', true ); included in its wp-config.php file (just above /* That's all, stop editing! Happy blogging. */) because otherwise this file will be ignored and the minified file will be used instead.