Look at this picture
Notice the timeline bar on the right says there are 132 posts in the topic. But clearly you can see Cheesesteak’s post #133. And there have been three hours to update the count, if that was the issue.
Notice that I have expanded the replies, but the reply to post #133 is post #132. I understand how it happens, but coming from threaded forum experience it confused me at first to see the “1 Reply” and no subsequent posts. I thought there might be a problem loading the topic.
And the jump-to-post arrow (under where the tooltip reads “share a link to this post”) is pointing the wrong way.