First of all the App (I know, shocking right) is incredibly confusing and ambiguous, and isn’t clear if voice control is actually installed on my Move 2 or not. Some sections appear to say it is, but I think this is partly because the app doesn’t off doesn’t always clearly differentiate between individual speakers or global system settings.
 

When I try to add Sonos voice control to ‘another speaker’, the Move 2 appears and I follow the onscreen directions, but it always fails after a few minutes.

The mic button on the back is on, by the top one is off, and it just flashes for a while when I press it.

All firmware and software up to date at time of posting. I have tried a factory reset but doesn’t help. 
 

Is there another I can try, or is yet another broken feature I will just have to wait for to be fixed?