Omid Kordestani, the former chairman of Twitter, has filed a lawsuit against the social media giant, now known as X, owned by Elon Musk. The lawsuit claims that Musk refused to cash in shares worth over $20 million, which Mr Omid was entitled to after Musk acquired Twitter. This legal battle sheds light on the ongoing turmoil within the company following Musk's takeover and the disputes over compensation owed to key figures from Twitter's past.