To me it looks like : "Something went wrong. [Try again]". Clicking the try again button will never do anything. Reloading the page a few times will eventually load the tweet. Unless I'm on a mobile connection. And sometimes the web workers get screwed up and nothing will ever load until the browser is restarted.

When it does load, chances are that it only shows one tweet from a thread followed by half a dozen unrelated tweets that twitter thinks I might want to read instead.