MA patch for ET+

functions.php

<?php

add_filter( 'tribe_asset_pre_register', 'rt_et_patch_ma_nonce', 99 );

function rt_et_patch_ma_nonce( $assets ) {

	if ( ! in_array( 'event-tickets-admin', $assets->groups ) ) {
		return $assets;
	}

	foreach ( $assets->localize as $item ) {
		if ( $item->name != 'TribeTickets' ) {
			continue;
		}

		if ( ! isset( $item->data['tribeTicketsAdminManagerNonce'] ) ) {
			$item->data['tribeTicketsAdminManagerNonce'] = wp_create_nonce( 'tribe_tickets_admin_manager_nonce' );
		}
	}

	return $assets;
}