Screen saver
Yesterday, I updated to macOS Monterey. 12.0.1.. These updates are NEVER worth the hassles they cause!!! I had recently bought a refurbished iMac and it was a struggle to get the screen saver to be my photo albums. I wish I could remember how I fixed it because after the update, I'm having the same problem... I'm trying to use Ken Burns and Photos as the source, but the screen is just black.
iMac 21.5″ 4K, macOS 11.6