Here's the long and the short of it.
Twitch decided they wanted someone out of contract early. They didn't want to pay him off so they fabricated a sexting story and didn't even bother to fabricate a formal investigation. Twitch used out of context messages from his DMs to try to prove their case which got dismissed in court.
They wanted all this under NDA before and after the court case they lost, clearly to cover up what vile cretins they actually are by trying to ruin someone's reputation to save a few quid.
They got bent over in court, but kept the NDA, which ex employees decided to break who clearly weren't privvy to the outcome of the court case as they've repeated the same lies from before the case proved them to be lies.
They've now been publicly called out as the NDA is effectively void and can expect to lose all their assets in court shortly.
Oh dear.