I’m having the same issues with a HX Stomp as “Xinkiex” above. When I change snapshots, the sound changes as it should, but the screen doesn’t show the change. When I edit a parameter in a block, the sound changes, but again, the screen doesn’t show the change. If I press the home button after making a change, then the screen does show the change when I go back to the block’s settings. I’m on firmware 2.81 and it’s a brand new unit which I updated to 2.81 before I started using it.