cannot get drum map to show in drum editor

Hi All

when opening an editor to edit a drum track, with a drum map assigned from Groove agent, I can’t get the drum map to show on the left side of the editor pane. If I use the editor menu I can swap to key editor and see the keyboard keys.
But nothing shows with drum editor. Nothing has shown up in searches
Cubase 10.5.12 on macbook pro

Recently installed Absolute 4.

Driving me nuts


Perhaps a screenshot showing the issue and also the Inspector of the drum Track would be useful.