Supreme template is not working.
Thank you for your response, we still have this issue. I am happy to provide more details in private as well as access to our development system so you can have a look inside if that helps.
We do not have any other emailer plugins installed, as I've shown in the video, the built-in WooCommerce emails (also edited by your plugin are working) while the Supreme and Deluxe ones aren't.
Please let me know how can I help further.