This happens in both 1.1 and 1.2. It really grinds my gears and users complain about it DAILY. We did not have the same issue with Invision Power Board. This happens completely randomly and I think it might be cache issue. What can I do to resolve this? I thought this was theme related, same thing happened when we used XenForo's default theme. We then thought maybe plugin, disabled it all. Same thing happened. I'm out of ideas.