That board seems to be out of sync with the forum's main opening page.

If I go to 'Unread posts, since last visit'...there only seems to be a couple of topics listed as unread.
After I look at those, and........

Go to the 'Main board'.......That shows there are 'new' posts that I haven't looked at......Odd. 

Cheers - Phil

I get that quite frequently, depends if you switch devices between watching threads?

Indeed, if i look on my mobiledevice, and then look onpc, it doesn't show the topics it showed on mobile.Beacuse that counts as a visit, soonly shows things posted between thoe visits

I'm only using the home PC.  Just seems a bit strange.

Cheers - Phil

Looks OK to me atm.

IanS

Yes, it has been occurring for me also.
Sometimes pressing "show unread posts" shows nothing but if I then click "read all unread threads" (which it gives you when no results are returned) I'll get (usually) a bunch of results.

The other strange thing is sometimes threads I've commented on don't show up in "new replies" and I find them in "unread".

Seems reasonably that this has something to do with having two or more instances of the forum open on the same or multiple devices simultaneously.