Have you executed the updated CAP requests for twitch?

Code:
    /raw CAP REQ :twitch.tv/membership
    /raw CAP REQ :twitch.tv/commands 


I have these in a script so when I connect, they automatically execute

Code:
ON *:CONNECT: {
  if ($server == tmi.twitch.tv) {
    /raw CAP REQ :twitch.tv/membership
    /raw CAP REQ :twitch.tv/commands
  }
}

Let me know if this helps.