Re: I am having a problem
It's nothing strange. When a users posts are punned and their last post was made in the forum, it will still show up as the last post made on the index, until a new post is made in that forum. This only happens because the admins don't update thread/post counters after prunning posts, which is usually required to do after prunning posts from a user. If they did update counters, then a lot of users post count would drop.
As soon as a new post is made in the forum its happening, the problem will go away and the "go to last post button" will work like normal.