To create this, I entered all of the running 32nd notes, then changed their size to 0% or 1%. (This has the advantage of saving horizontal space in the score.) Any insights into what the problem might be? It seems that what I’m seeing is all of the stems.
Yes, there are stems. I tried changing the notes back to 100% size in properties, then going into Engraver mode to hide each stem. I gave up. Too much work.
I’m using note size — not color/opacity — to hide them. But I’ll double-check for mono.