Twitter is trying to find out the reason behind the mysterious disappearance of tweets from the social networking site.
Tweets from several accounts, including Ellen DeGeneres' record-setting selfie from the Oscars, have disappeared,
According to CNET, the move comes after users expressed frustration and bewilderment over tweets disappearing from their feeds.
The social network confirmed that it was 'researching a bug that has caused some Tweets to not be displayed.
Instead of the usual tweets, users are seeing a notice that reads, 'Sorry, that page doesn't exist!'
Some of the accounts reportedly affected include CNBC, The Daily Mail, The Ellen Show , and Lady Gaga.