Hi,
I have 8 Cepstral voices and after entering the 4th voice in Config/Voices it will not test, no sound. Same with the next 4 Cepstral voices, no sound. Log file shows normal test. I confirmed it on my second licensed computer, same issue. No problems with Microsoft David and Zira or CereVoice Adam, Hannah and Natan.
Running V2.3.1.2 on Win 10 64
Martin