Automation to send Email NOT 'Reminder' Notification

I have an automation set up that sends an Email notification if an item is incomplete to the contact, and it has been running smoothly for 4 months. I get both a copy of the email as well as a notification in Smartsheet that looks like this.

I recently deactivated the automation because of the Holiday's and turned it back on and it's been running again with no problems. Yesterday I noticed that the automation ran, however, it did not send me an Email and only a 'Reminder' notification that looks like this. The message is still the same but no Email!

What could possibly be going on?? I do not want a 'Reminder' notification because some of my contacts only check Emails and/or do not have their notifications set up to alert them.

HELP! Does this Reminder Notification mean that they did in fact receive an Email and I am just seeing it as a 'Reminder' in my Smartsheet now because of my settings or something? Or how can I confirm they got an Email??

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