Bug fix required --> missing subject in automated emails

Bug fix required --> missing subject in automated emails

Hello,

an urgent bug fix is required: Emails that are triggered by an alert have NO SUBJECT (empty subject field, despite properly set up in templat), when reaching recipients that are chosen from email recipient lists. HOWEVER, the same email DOES have a subject (as it should) when reaching recipients that are manually entered in " Additional recipients" field.

Please fix and let me know, when solved.

Thanks 
Maurice