Does my electronic photo frame have a face recognition thing going on?

I have about 300 pictures of my family loaded on it. It’s a gift for my dad’s wife. I’m letting it scroll through the pics so I can stop and edit ones that need to be editing.

I can’t help but notice that it’s displaying different pictures of the same kid one right after the other, until all those pictures are played out.

Then it starts on a new kid.

They are in totally random order, just the way they were in my picture file when I loaded them all to the USB card.

The only thing I can think of is that at one point I made a separate folder for each person, and moved pictures of them to their folder. I wanted to make sure they were pretty evenly represented Mainly because I could download a million pictures just of Savannah because she’s so freaking beautiful, not realizing that I have 90 of her to every 1 of the other kids!

Anyway, after I checked every thing I then grabbed all of the pics out of the folders and re-loaded them into the main file. They sorted themselves back in the random order they were in.
Most of them are not named except by what ever number or letter combination the camera assigned it.

So why is it displaying the same kids in groups?