Hi there @tzickitzacka,
Please note that WooCommerce emails will only send if the customer is in “Subscribed” status. There’s more information about this in our documentation here:
https://kb.mailpoet.com/article/277-woocommerce-automatic-emails
WooCommerce Automatic emails created with MailPoet will be sent only to “Subscribed” users. If they’re still “Unconfirmed”, the email will be scheduled but not sent until they confirm their subscription via email (if double opt-in is enabled).
Also, the emails will be triggered only if the order status is “Processing” or “Completed”.
Is the email address you placed the order with currently in “Subscribed” status? And is the order in “Processing” or “Completed” status?