Current verison of WP 3.7.1
Hosting with wppengine.
Receive email alerts through other plugins such as wordfence.
I only use two statuses "draft" and "publisher"
Added editorial comments in any of the statuses, individually or in a group - do not receive any mails
Editorial Metadata & Story Budget not enabled. everything else enabled for posts.
i have disabled all my plugins and only activated editflow to check if there is any incompatibility with anything else. ( and swaped theme) with no change.