The reason for duplicates is not a plugin, but incorrectly working WP Cron.
Do you have WP Cron setup correctly?
http://www.nextscripts.com/tutorials/wp-cron-scheduling-tasks-in-wordpress/
Of course we did all this completely. We used curl way. But nothing has changed.
We described all issue in a trouble ticket and we gave even logs. But nobody has answered after 2 weeks of waiting.
Please go to the Help/Support tab and check only “All Cron Events” checkbox.
You should see ONLY crons executed regularly from Mozilla/5.0 (or whatever you use in your curl config) every one or two minutes. If you see “WordPress/4.8.3” or irregular intervals, your cron is not set correctly.
Not ‘Help/Support’ but ‘Log/History’ tab.
Yes. I see these strings only:
…
[2017-11-11 10:25:02] – [Cron Request]- 298.36s after the previous one. | Cron called from 176.56.238.132 (Mozilla/5.0 (Windows NT 6.1; WOW64))
[2017-11-11 10:20:04] – [Cron Request]- 301.38s after the previous one. | Cron called from 176.56.238.132 (Mozilla/5.0 (Windows NT 6.1; WOW64))
[2017-11-11 10:15:02] – [Cron Request]- 299.45s after the previous one. | Cron called from 176.56.238.132 (Mozilla/5.0 (Windows NT 6.1; WOW64))
[2017-11-11 10:10:03] – [Cron Request]- 300.49s after the previous one. | Cron called from 176.56.238.132 (Mozilla/5.0 (Windows NT 6.1; WOW64))
[2017-11-11 10:05:02] – [Cron Request]- 298.27s after the previous one. | Cron called from 176.56.238.132 (Mozilla/5.0 (Windows NT 6.1; WOW64))
[2017-11-11 10:00:04] – [Cron Request]- 301.90s after the previous one. | Cron called from 176.56.238.132 (Mozilla/5.0 (Windows NT 6.1; WOW64))
…
ok, this looks good. Can I see the log of the new post that made duplicates. (Please uncheck all checkboxes in the Log/History tab).
Yes of course. Can I send it to you privately?
Sure, [email protected], please mention this thread.
It’s done. Please check the email.