Hyde here from Shopify. That's an interesting question!
It's difficult to diagnose the issue without being able to cross-reference the settings with your orders. We do have a help document about abandoned checkouts here, which provides reasons for why a recovery email might not be sent:
It also points out that your abandoned checkouts page should provide an explanation for why recovery emails were not sent:
Another thing to bear in mind is that the Marketing report for abandoned checkouts only goes as far back as November 2019, and I can see that you tried to run a report for the past 365 days. Trying to pull a report for the past year will, therefore, produce no results.
I hope this helps, however, if your difficulties persist please do let me know.
Looking forward to hearing from you.
All the best, Hyde.
I'm having the same issue with abandoned cart emails not being sent and some of the abandoned carts showing in my back end are POS transactions that have been completed. The actual abandoned carts have emails sent to the customers but these POS related ones just sit on my abandoned cart list. Please help.