Automated Email Series Not Sending

[Columbia]

Hello.  I have an automated email series I've been using for years.  I create new lists and add them to the series.  This latest list that I created is attached to the series, but it is not queueing up to send.  I tried dumping the same contacts into a new list, and attaching that to the series, but it is not sending either.  Can anyone help me.  This is a new problem after years of successful use of this automated series.  Thanks.

[Columbia]

We are having the same problem even after manually entering emails.  Thanks for any advice.

[William_A]

Hello @Columbia ,

When you add these lists to the legacy automation series, are there contacts already in it? Do these new lists include contacts who have already gone through the series?