I am using a MacBook Air M2, running Sequoia 14.3.1 with Photomechanic Plus V6. When I plug in my WD hard drive I can access it in its entirely using Finder. From the Photomechanical navigation, I can see the HD, but it does not have an expand arrow, as do other drives. When I double click on the HD icon, nothing happens. I have granted Photomechanical Plus 'full disk access'.
Any help, much appreciated. I am not an expert user, so my errors could be fairly basic!