I tried to load a couple of traces and got a pop-up saying "Oops, something went wrong. Please file a bug."
Would that be possible for you to post the exact link (current url) where this happen?
Thanks. It's working on my side, so I guess it must be an issue related to browser. I tested chrome and ff only. Which system/browser do you use? Can you check console output and see if you have an error there?