Moving line of small images in slideshows and renaming issues in Photos on Tahoe 26.0.1

How do I stop the moving line of small images from spoiling slide shows? Also when I copy a picture from Photos to a file or to the desktop to change details, and I move the renamed picture back to Photos, the old title appears again. How do I get Photos to accept the new name when transferring?

[Re-Titled by Moderator]

Original Title: photos problems Tahoe 26.0.1.