If a scheduled event fails to run, I should first Update (with or without making any changes) a page (even this one) or a post (and wait for about 1 minute). If the scheduled event still fails to run, I can download plugin Scheduled Post Trigger. That plugin will force the event to run.
WP Staging needs 3m 38s to create or update a staging site.
Foliovision. https://foliovision.com/site/wp-login.php?redirect_to=https%3A%2F%2Ffoliovision.com%2Fsupport Userid: carlh, password: 2IeVUwVK0jSv