I posted this in 33 release thread, but it seems kind of important:
I've had a couple of instances where, regardless of internal volume setting, I've been blasted with what seems 100% internal volume. I ended up turning volume control on DAC way, way down because of this. I'm really not sure what causes this, but it's a bit disconcerting.
Update:
I think what may intermittently cause this is switching between zones, one of which has volume control set to disabled and other set to internal volume. Not positive this is what triggers issue, but when it does happen, internal volume seems to have no effect.
Haven't tried this in 32, but it's possible it's also in that release, since I had never before configured zones in this manner.