Thanks for looking into that for me Polaroid. I'm away from the studio, but loaded an empty project on my laptop and it appears to be working as expected, so I'm thinking maybe it was good ol' corrupted project. These were old files that I was revisiting, although only a couple of years old . .
One other thing that the (possibly) corrupt file was doing was creating a VCA every time it created a "generic" summing stack (even if all the assignments were the same), to control all the tracks with differing assignments, which I suppose is a cool feature, although I haven't noticed it before. Is this a preference, or song setting, because it's not happening in this empty test project?
Thanks again