Volume bump on part transition

2.2.120, and as they say, “Hello, here we are.”
I usually use the global stack, but then NAM 2 came out, so I decided to try switching stacks in PART.
But here it is, as always, a year-old bug has returned.
Maybe we’ll finally get at least one stable version? Or is this an impossible task???
The problem is, where does the sound in the sound group in PART 1 come from again when there’s not even a signal sent to it!!!