Mojave 10.14.2 - Slideshow arrow keys no longer working in photos screensavers

I've updated to Mojave 10.14.2 a few days ago, and the photo screensaver which I've always used no longer allows you to use the back or forward arrow keys to shuffle through the photos you've already seen. Real bummer. Not sure why that feature would have been taken away unless it's an oversight. With over 90,000 photos in the library that it's using, sometimes a "long-lost" photo will show up and I'll want to arrow back to see it. Loved this feature...