So, I'm having an issue where I'm entering notes on a drum part on a big band score and everything from the point of editing mutes, except the piano. I'm really pulling my hair out over this as I have to choose between editing my drum part or having playback!

The mixer is not muted.
The sounds are notion's own vst
It seems to only happen on certain bars, usually when I have two notes on a single stem.
The effect is reversed when I delete the bar causing problems in the drum part.

I'm not sure if I will have much luck pinning this down, as it seems so random...