Mine is having issues, and the language has defaulted to German. It shows over 300 unread posts and won't let me mark them all as read ...
Edit: I found where to change the language, and it removed all the unread posts, which must have been on the German language page.
My forum link is really screwed up, the posts are in English, but everything else is in German. I've been with support about this, and so far they say they can't duplicate the problem. It's like that on every device I have, iPhone, IOS, MacOS and Windows. They told me to go to the upper right hand corner and select "Sprache", but there is no such option anywhere that I can find. When I enter the main site, it has United States checked, but the forum is the way I described it, and I have clicked on every pull down menu option, and there's still no way to correct it.