"Follow Chord Track"-"Root Notes" Question?

Hey everyone. Under “follow chord track” I’m selecting “root notes”. It’s not doing anything or maybe I’m doing something wrong? I also went to-single voice-bass. Here it works, but it seems I can’t change the octaves or I have to then turn it off. Seems it stuck at one pitch for example at A1. I can’t change to A2 or A3 etc.

Thanks for any help.