Modified versions are appearing distorted & only the original prints
In one of my Events, all of the modified version thumbnails appear out of proportion and distorted. When I hover a cursor over one, it flips back and forth between (distorted) modified version and the original. When I select modified versions to print a contact sheet, only the originals print even though it doesn't appear that way on the screen when I'm setting it up.
Can anyone suggest what I'm doing wrong or what has happened? Thanks for any help you can give me!
Aperture 3, Mac OS X (10.7.5)