Hi Nicolas,
Thank you for reaching out to us. We apologize for the inconvenience caused.
Regarding the issue with custom notes disappearing, we would like to inform you that the note should be saved automatically when you click on the “Update” button on the product edit page. However, as you are facing this issue, we would like to investigate the issue further.
For that, we would require your login credentials to your WordPress website to check the settings and resolve the issue. Kindly send your login credentials to [email protected] so that we can assist you better.
Thank you for your cooperation.
Kind regards,
Moshtafizur