I noticed this yesterday, but it may have started a few days earlier: the website is missing key buttons and has layout errors to the extent that I can no longer use it for most tasks. Even this issue tracker page, see image below, note missing controls in left hand side.

I have tried Safari on both iPad and Mac, multiple projects and pages with the same effect. Login screen appears OK though. Is this a Safari compatibility issue, or has something become corrupted in my dashboard or something else happening?