If you go to another screen within the app or close Snapchat, you could’t replay the snap.
One is labeledTap to chat.
It switches toPress and hold to replay, and then back again.

Press and hold on your friend’s name until their snap reloads, which should only take a second.
This goes for both photo and video snaps.
After you replay a snap, it’s possible for you to’t replay it again.

Politely ask them to do one thing to help you out.
And you still have the option to replay it if you want to.
If it’s a photo snap, the button looks like astopwatch with an infinity sign.
If it’s a video snap, the button looks like acircular arrow with an infinity sign.