New version update and artwork disappears

Roon Core Machine

Macbook pro iOS 10.11.6
Roon version 1.8 build 935

Networking Gear & Setup Details

Cambridge Audio EVO

Number of Tracks in Library

9632

Description of Issue

Roon updated itself this afternoon (I did not ask for an update). Most of the artwork is gone. I only see album covers that I uploaded.
Why did it update itself without my permission?
Where is the album artwork?
Before today, everything was working smoothly.