Good evening Michael and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
We are sorry to hear about the challenges you are facing with ticket emails.
I would love to help you with this topic.
Typically, tickets are only sent when the order is set to “complete”. Never before.
If they are being sent regardless of the payment status, it means that something is automatically changing the order statuses to “complete” (perhaps the checkbox or a snippet in your WordPress theme).
Can you try unchecking the box and see what happens ?
As a first troubleshooting step, could you please provide us with your complete system information in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Best regards,
Geoff B.