Reset the Cron Schedules for Paid Memberships Pro (single-use run with Code Snippets plugin). The solution that runs on every PMPro Admin page load can be found here: https://gist.github.com/sc0ttkclark/e11691d6c5a278662e3c694a0bb12e5a

my-pmpro-reset-cron-schedules-single-use.php

<?php
/**
 * Reset the Cron Schedules for Paid Memberships Pro (single-use run with Code Snippets plugin).
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

pmpro_maybe_schedule_event( current_time( 'timestamp' ), 'hourly', 'pmpro_cron_expire_memberships' );
pmpro_maybe_schedule_event( current_time( 'timestamp' ) + 1, 'hourly', 'pmpro_cron_expiration_warnings' );
pmpro_maybe_schedule_event( current_time( 'timestamp' ), 'monthly', 'pmpro_cron_credit_card_expiring_warnings' );
pmpro_maybe_schedule_event( strtotime( '10:30:00' ) - ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ), 'daily', 'pmpro_cron_admin_activity_email' );