Problem with Flow using a list; second email not sending

Hey @debl ,

Welcome to the Community and thanks for posting here!

That is odd behavior indeed. 

Did you create both emails at the same time? Generally, when you add another email to a flow, it will only prompt NEW users who enter the flow for the second email.
This means that if you created the flow, all of your users entered the flow, and then you added the second email, those "first wave" users would not receive that second email. Any new users however you signed up would receive both. If this sounds about right let me know, but if not I am happy to keep looking for solutions with you.

My best guess is that your second email may have been in Draft mode when you first populated this flow, that would explain why the recipients were successfully queued for the first email, but none of them were queued to the second email. You could try and back-populate the flow to see if the users will come in then. But when doing this, it may have appeared that nothing occurred when you first back-populated and this is due to the time delay field. Make sure to select the button option: "Schedule emails relative to when I click the back-populate button".

The people who received the email the first time should be skipped accordingly because this is a list based flow (your newsletter sign up trigger). That should resolve the issue and allow those folks to get those emails at the time they are supposed to. 

Hope this helped!
Alex