This sadly has been an ongoing flaw since 2021 Mac that I know of. I've reported it many times, to new avail.

Through Mac '21 & '22 it was just the Melody track -- whenever it was UNchecked & then saved, it would refuse to comply. Re-opening the file each time, the Melody track would reappear, checked, sitting empty in the Mixer window. No matter how many times you unchecked it to make it disappear & then saved it, it reappears every time that file is opened. Luckily, all the other tracks performed correctly.

But now, in Mac '23, the Mixer is a full-on jail break.

The Melody line is STILL broken. However NOW, it's been joined by ghostly reappearances by other tracks, despite being clearly, methodically UNchecked and then Saved.

Hidden? No such luck. Tracks default to reappearing, forcing the process of hiding them yet one more time. The Bass & the Strings lines are two culprits I've seen repeatedly, there may be more.

In short, the 'Show Active, Hide Inactive' pull-down menu default code is rather a mess in BIAB '23, I'm afraid.

May this please be put on the list of 'Bugs to be Fixed' for Build 706?

Many thanks & undying friendship to the coder who slays this bug at last!

E.J.