Forum won't mark as "read"

[myrroddin]

For the last few days, as I've gone through the forums, they all work normally whether I actually read the threads or use the forum tools to mark as read, except the RDX threads.

If I go into the threads, they are marked as read, because I have read them. They are not bolded, meaning new posts. I can use the tools menu and remark them all. But when I go to the main listing that shows all the threads for then entire WoWI list, RDX shows as having new posts.

Is this a site issue, or something unique to the RDX threads? They used to work normally until a week ago.