Missing some notification emails?

I have a separate post here where I’ve provided a screenshot showing users who haven’t logged in for a couple of weeks and the Last Emailed column is also that long, even though they have set emails to be sent daily. I have no idea why these emails are not going out.

Unfortunately, since I posted this thread earlier this week (I added the aforementioned screenshot yesterday) I haven’t reviewed any reply, so I’m still in the dark.