"First Unread Post" Function Gone?

Did we lose this function because of a system update? It was a great function that I used all of the time on the posts that had several pages of replies. I would go to other sites and often wish they had it.

It’s working for me. The only issue that I have with it happens when the first unread post is on the first page and there is a second page. The link skips to the second page.

It is back. Right after the update it was not appearing on any of my “Insider” screens.