Uniti Nova: cover art for music on USB plugged SSD

Hi there

I've plugged an SSD with my music files on the rear input on the Nova. In the Naim app the folders and files are listed correctly but the album folders do not show any cover art. When playing a file format that includes the cover (e.g. ALAC) the cover is being displayed on the track playing view in the app and is also being shown on the Nova display.

Is there a way to show the covers for albums stored on a USB plugged drive?

Thanks for any help!