I have come across a strange issue. When working with drum arps, I sometimes use the keyboard range selectors on the performance home screen to figure out what drums are assigned to what key, a tip from Bad Mister.
But there appears to be a particular drum/individual arp combination this does not work for. To reproduce.
Create an init AWM performance. Press shift-control assign to add a rhythm pattern. Then select New Oak Custom kit. Select MB1_Modern Jazz for the arp.
Start the arp and try using the keyboard range on performance home to limit the drums we hear. It has no effect. Using a different arp or drum kit does not exhibit this behaviour.
I have a Montage 8 with firmware 3.5.