That was actually in the previous version as well.
server list scroll buttons are to the right of the actual graphic.
I have a fix for this. In q3_ui/ui_servers2.c, line 44, change the define for MAX_LISTBOXWIDTH to 63. The list box is currently too wide and interferes with the scroll arrows. This forces the activation area to be to the right of the arrow images.
I'm new here, so let me know if this is a good way to inform fixes or not.