UBB.Developers Forums UBB.threads 6 Bug Reports Messages already read amrked as new (br5)

I just noticed, on these forums, that a few messages on the Modification suggestions board (v6) that I had alread read became flagged as new again, including one of my own messages.

Anyone else seen this behavior?

I see it occasionally

Do you know if this happens when you have closed your browser and come back to visit or only when your browser has remained open during visits?

I think it is was closed/reopened last it happened.. I'll be keeping an eye on this bug..

Happened again, on the (lol) Bugs board. Checked back the browser window history, this browser window had not been there yet.

Even if I hit 'reload' they still read as unread/new (including my own post)

edit: checked the other boards, they're also acting as if the last time I logged in I didn't read what I *did* read, although the 'new posts' lightbulb is not lighting up in ubbthreads.php. It seems to be listing anything I read in my other open browser window a couple hours ago as unread (I just scrolled back on that browser window's history).