EPS file doesn't show all items in illustrator

Hi everyone. I've seen this issue a couple times and I'mnot sure what it is and/or how to fix it. I downloaded eps vector file. Opened it up in illustrator and it shows me certain art work. But when I close the file and I look at a thumbnail on illustrator's recently opened files it shows me as if there should be more art pieces in it. I can't click "show all". I tried ungrouping objests, I tried to see if they were in clipping mask, but no, neither of those worked. I checked in layers and artboards in case they were not showing, however I don't see any other layers except the ones I already see open. Almost feels like the thumbnail is it's own thing and art in the file doesn't match it completely. Is there a way to fix it? 

screenshots attached*