Hi @knireis,
Thank you for the information. We have tested the plugin with your versions and it seems to work on our setup. Can you please check these two scenario and let us know if you still getting this issue :
1. Are you trying to use the checkout page while logged in as WordPress Admin user, if yes, you won’t see the subscription section, as all Admins are already subscribed to a default Mailpoet List.
2. If the user you are logged in is subscribed lists on your website, you won’t see the subscription section on checkout page.
And please make sure to set proper settings on WooCommerce >> Settings >> Mailpoet >> MailPoet WooCommerce Add-on. Specially the “Subscription Position” field, this is where your subscription field will show up on checkout page.
Hope this helps and if you still get the same issue, please let us know. We will be happy to assist you with this.
Thank you,
Tikweb Team