You should definitely be able to view the email in the smart list filter/trigger if the email has been approved.
Just a thought
1. This email is not sitting in another workspace and is it definitely part of the "recap" program?
2. Try to recreate another smart campaign and attempt to run the same logic. I wonder if for whatever reason your smart campaign is bugged.
Definitely raise a support ticket so that the Marketo support team can attempt to replicate this issue and provide you a better understanding.
This puzzled me at first too! Once you activate an AB test using the Email Program your email name changes to "Your-Program-Title.Subject Line Test". Try searching for that instead.
Just to add to Mary's comment. You will need to have the email program approved before the email is visible in the drop down list.
Manged to find the article I was looking for as well: How to trigger Links Click/Open Email in AB Test Program?
Example would be something like this