Duplicate emails being sent

Hi there,

My MailPoet plugin is randomly sending out duplicates of the same email to recipients. I’ve checked your knowledge base article and I have the cron job selected and I’m using site visits to trigger the cron job. I’m also using SendGrid to do the sends. It’s currently set to 200 emails every 15 minutes. Can you offer any guidance as to what might be causing this please?

Thanks.