Have you ever experienced this issue on Twitter when you switch back to the Twitter app or desktop website and start reading a Tweet, only for it to suddenly be gone and the feed seeming refreshed itself? It breaks the experience and annoys users, and Twitter is finally addressing this issue. A couple of Tweets from Twitter's Support handle explains what causes the issue, and addresses that it is being worked on. The background: a Tweet would move up the timeline as replies were added to the ongoing convo. Since some convos can evolve quickly, this made it so you didn't see the same...
Source: https://www.gsmarena.com/twitter_will_fix_when_tweets_disappear_upon_autorefreshing_feed-news-51086.php
