Hi,
In both cases, I'm using sapi 5. I thought it might have to do with the wave player system for sapi 5 in the newest nvda, but disabling it makes no effect. It is kind of odd that now the song list is all that interrupts. This means that any action that happens very fast will be performed, but the speech will quickly get out of sync. For example, when in the folder list, if I turn the browse nob on my controller, and I go through several folders quickly, my speech has to read every single one. Same goes if I colaps the entire folder tree with shift enter, changing the tempo slider position with tempo announcements on, changing the cross fader position with those announcements on, etc.