No sound from D3.5 and NP despite considerable troubleshooting

I attach the diagnostic file
Dorico (227 KB)

I’ve sent you a private message with instructions of how to fix it. Please report back if you have questions or need further assistance.

Btw, and that has nothing to do with the NP issue, you are still on D3.5.0 but there is a for you free update available to 3.5.11.