The currently selected voice is not automatically announced when you navigate to the Voice option in the rotor

Typically when using the VoiceOver rotor, as you move to a control, VoiceOver will announce it's current status.
For example, move the rotor to Volume, VoiceOver will say "Volume, 70%". Or for hints, it will say "Hints, enabled".
On Voice however, it simply announces "Voice", whereas it should say for example "Voice, Alex".
It does announce the voice if you then swipe up or down to change it, hence it is only a very minor bug.