Base ii not updating with new set Ableton

So I just got my new Base ii, and it seems to have this odd behavior- it works fine when I open an existing set in Ableton, but if I open a new set it just freezes. It still sends midi, but doesn't change modes, the clip grid doesn't light up, the ribbon controls don't scale their lights up and down, nothing seems to change on it. (Live's preferences are set correctly, and they work for the existing Ableton set.) Then, if I open a different preexisting set, the Base works again!