I'm using WordPress 3.5.1 and WP Meetup 1.4.7. I have this installed on two different domains.
I noticed that randomly on certain days it will double post the exact same event. I've checked and re-checked the Meetup entries (they are correct) and have checked and re-checked settings for the plugin. I have even deleted the plugin and plugin settings and have started over. I have forced refresh. Nothing seems to work.
Anyone else experiencing this? Any ideas why it's making duplicates of some events? Seems to happen only for a few... ???