screenshots shared to photos are dated 1970?

screenshots shared to photos are dated 1970?

on my wife's 5X, she likes to grab screenshots of crap from pinterest. to do so, she long presses Home and using google on tap shares to google photos. she couldnt find them in photos even tho it appeared to upload. i eventually stumbled onto all of them at the bottom of the list because they are dated january 1970. tried several times myself and got the same results. my s7e works correctly. havent tested my 5X yet. i tried rebooting and clearing photos and play services cache. no luck. some quick googling didnt reveal anything. i checked, and the time is set for "use network time". i toggled it off and on no help. anyone have some ideas?