There was some confusion in this. It's not a bug that it doesn't take you to the unread post in the next topic. It is a bug that it doesn't always actually take you to the next topic, but sometimes will take you to the actual first topic in the forum even if that's not the next topic.
I just upgraded to 7.1 Beta5 and, in addition to the bug where it takes you to the newest post, I have had several members report the behavior of these buttons as not what they expected. Most expected to just be taken to the next topic "down" the list (meaning older topic) when clicking "next topic" and then walk "up" the list when clicking "previous". NOt a big deal, but it does seem to be confusing them (and me).
