Amanda Nance commented,
Thanks both of you! Turning off HP fixes it. I don't really know why HP is doing what it's doing. It was set to "Standard", and here's a screenshot of the details dialog. And FWIW, here's a part...
Amanda Nance created a post,
Using full Finale version 26 on Mac. I imported a music XML file that has 4 staves (voices). At least one of the staves has random changes in volume during playback. I need it to be the same level ...