Between 8:18 AM to 8:32 AM PT some users received a "Something's fishy" error while loading their threads or mentions & reactions from the sidebar.
We closely monitored incoming reports and internal metrics and are confident the issue is now resolved. For those affected, please use Cmd/Ctrl + Shift + R to do a hard reload. We're continuing to investigate the cause of the issue to prevent future occurrences.
11:06 AM PST