desktop preferences pane disappears after a moment
OS 10.15.1 - Macbook Pro retina 15 in, mid 2015. Trying to change the desktop image. When highlighting the preferences pane it appears for a second, then goes blank. The Screensaver pane is is fine. I've reset NVRAM and PRAM. I've reinstalled Catalina. Any thoughts? Thanks.
MacBook Pro 15", macOS 10.15