Default program with email inside not sending within an engagement program stream

Hi All,

I seem to be having trouble with having my email nested within default programs send in an engagement stream. I have tested it multiple times and never received the email from the default program. I set up a test program that I have been using which you can see in the screenshots below. 

Basically I have the engagement program then within that I have an Assets folder that will contain all default programs. In each default program I have an email, the program flow which is the member of engagement program with a flow of send email. Then, I have the progression statuses for our emails that we regularly use (email sent, email opened, email clicked…)

Next, within the engagement program I have the smart list of people we add to the engagement program as well as the smart campaign “Add to engagement program” 

Attached are screenshots of the test program I put together that I’d like to use as a real program set-up. The first image is how I have it all set up folder-wise. Next, is how I was told to set up that 01. Send Email smart campaign which would allow the email in the default program to send. Finally, is an image of the stream, as you can see it says we have exhausted it so something happened but the email in the default program was never sent.

I'd appreciate if anyone can help me figure out why an email in a default program would not send within an engagement stream. Thank you!