Hey
When unloading subs from the fader wing, by pressing [shift] + the two fader buttons... around half of the time the sub now bumps to full before unloading. If this is the only fader loaded with that sub, the channels then fade out (presumably following the default sneak or release time). If that sub is also loaded on another fader though, the channels keep their bumped intensities. If you go to the other fader, you can get back control of them. I suppose one could suspect it's operator error (bumping and then releasing), but I've been doing this ever since there was a [shift] key, and it's never happened before. 2.3.3 was fine; I never got around to installing 2.4
Let me know if there's any more info that would be helpful to you.
Kris