I made a post that disappeared. It was visible though on the esteem app and on the website itself on my PC. I refreshed and it was gone.
I managed to find it in the steem blockchain with my username and the permlink. Its created date and most details were stuck at the default so I'm guessing it was somehow saved wrong or something happened when posts are first inserted.
That's odd that it was on the blockchain, but not SteemIt! All sorts of weirdness. Thanks for your comment, @desu!