I’m on OSX El Capitan.
Beta firmware 2.1.9
Beta Editor 3.1.0
If I use the up and down arrows, next to the “Preset Manager” button, the editor eventually gets confused and doesn’t allow me to go back to the top of the list of patches.
E.g., say 20 down arrow presses and 20 up, can end up in random places.
This is also something which used to happen on Windows, some time ago.