I am having a similar issue. The same old post has gone out 2 days in a row. Last week I updated elegant themes but I don’t think it is any of the setting in that. I did receive a message from wp this thats the site was updated. This has occurred since that time. For now I just notified my readers and put the offending article into draft status. That is not a fix but I am hoping another won’t be sent.
Anyone have a suggestion on how to fix this?