Screensaver issues

I created a screensaver for Christmas. Pulling many photos from my photo library. A recommendation of ChatGPT, I pulled 260 photos. We are continually getting approximately 20 photos in a repeat cycle. I did question ChatGPT on why this was happening and they said there was an interface issue between the iphoto gallery and the Apple TV operating system. I would love nothing more than all of those family photos to be shuffled, but we continually see the same photos. Any suggestions?