I've created a new DE based on a sync DE from SF by creating a data filter and a filter activity to create the new DE that should be used for sending emails. I can see the subscribers but when i try to send an email nothing happens. I see a green message that the email was sent but i didn't get any email. Also, the subscribers are not added to all subscribers list.
Is there any known issues when sending emails to DEs that were created that way?