organizer 2022 reloads photos that were removed in slideshow

After reading posts about duplicate photo problems in organizer, my brain is spinning. So Ill take a chance in asking what might be a simple question. when Im in the slideshow screen and trying to rearrange photos for the slideshow I comer across duplicates. I remove them. When the slideshow is processed and I play back I find that many of the dupicate photos I removed are in the slideshow presentation. I then do it all over again and the same thing happens. What am I missing here? I have windows 10-pro. Thanks