To correct my earlier post, this is a voice part and so it’s using NPPE and EW Hollywood Choirs. It might be relevant that NPPE uses a single EW patch for both soprano and alto.
Daniel, I’ve spotted 2 places so far where this happens, both with the alto part.
As you solve this, I’d be interested knowing how sending Hollywood Choirs (and WordBuilder) through NPPE works. I have always run Opus separately from NP.
I also wonder how clear the words are you find with WordBuilder; my effort often sound somewhat distant, slightly behind the beat, and mumbly in spite of different microphone settings.
I’ve updated to NP 4.5.1 and the problem has gone. This might be due to stopping and re-starting NPPE, rather than the software update, but in any event, it’s fixed.