Does this apply to mobile and full version?

I just read a thread on my iPhone, and when I clicked the thread on the full version, it took me to the first unread post in that thread.

However, regardless of which device I use (usually my iPhone, sometimes my iPad), it almost never takes me to the first unread post in a thread on mobile, especially for multi-page threads. It takes me some ways down the thread (i.e. it doesn't just take me to the start of the thread), but usually to some post that can be days (or weeks or months) old. This happens even when I only use one device to read the thread.

It seems that since the new mobile skin went in, this feature hasn't worked properly.