Ok, so further testing indicates that it only happens on users that were created in 0.6.1(via an import from SMF) and new users work fine. I can fix it by blanking out the user's email and then putting back in the correct email.
(For clarification this is running on a pull from the 0.7.0 dev branch from yesterday)
It seems on this board the status within chat-headings doesn't work pretty well. I can't reproduce, neither on master nor on v0.5.x branch so it would be great to have an update.
It often shows a state the user doesn't have, sometimes I've also seen 'null' as state.
Second issue, reproduced on master: If I set my status to invisible and change the page to a topic it shows me within 'browsing' (DéjàVu 😛 )