In my Reading Queue there is one story that shows updates as already read (without me having accessed the new chapter yet). All the others show as normal highlighting the new unread chapters. This one author's stories just show as if it is already read (no highlight and matched numbers). On the Following page the update is highlighted.
For the record it started with Ka Hmnd's Hole in the Ground and is continuing with The Thief Taker. I have not seen this behavior with any other story or any of his previous stories.