Coursepress sending two enrollment confirmation emails for each purchased class

Hey there! Site went live this evening, and client is super happy:

http://dearhandmadelife.com

Thank you guys for all the help troubleshooting this project - we found a minor bug tonight that client would like addressed. When someone purchases an online workshop from this area:

http://dearhandmadelife.com/shop/online-workshops/

and finishes the transaction, they get one email from marketpress detailing the transaction, and then two identical Enrollment Confirmation emails from coursepress. Can I get some help figuring out the duplicate emails from Coursepress please?

Thanks much!