It has been quite a while since I wrote to the list regarding this volume change problem.
I maybe should have change the subject to something like "egg on my face."
It turns out that the issue indeed was caused by a ducking setting being in force.
I did not realize that there are three settings, so completely mis read the screen output.
Thanks for writing, and great pleasure around my wife's office just now, as she does a lot of work with audio.
Just thought I'd update you.