Can I have the log follow along

The log , one can see below the lua code, used to scroll along with the shown data. A while ago it stopped doing this, but I can’t figure out what caused this. Is there a way I can have it show instantly the latest information, instead of always showing the oldest information ?

The scrollbar shows this behaviour:

In my experience, it scrolls “live” if you are already scrolled all the way to the bottom, and remains stationary if it is positioned anywhere else.