Where are my Snapchat flashbacks not showing up?
You Don't Have A Memory Saved For Today
If on this day in years past you didn't save a Memory, there would be nothing for Snapchat to generate for you today, so that's one reason why you might not see anything. If you haven't been an avid Memory user in the last year, you'll have less opportunities to look back.
How do you get 1 year ago today on Snapchat?
So how do you view your Snapchat Year End Story? It's simple: Just open the Snapchat app and tap on the Memories icon as you normally would. Your Year End Story will appear under the Snaps tab at the top of the screen. The story will be titled “My 2018 in Snaps.” Just tap it to see your Snapchat year in review.