A couple of days ago we moved to a new server and upgraded from 7.5.3 to 7.5.5, and since then are experiencing a couple of problems.
1) When viewing a forum, a thread that has any new replies shows the yellow folder and red number as expected. But when clicking on the subject of such a thread, the user is taken to the top of the thread rather than to the first unread reply as he should be.
2) The new post indicators are disappearing when they shouldn't. For instance, user enters a forum where a number of threads properly have the yellow folder and red number indicating new replies. He clicks on the subject of one thread, reads it, then returns to the same forum via breadcrumb link or the "Hop to" menu, and the other unread threads no longer have the new post indicators.
What do we need to do to get these features working properly again?