What causes some Aperture 3 photos to be duplicated with different (usually 2x) file sizes?
I have a number of projects where, for reasons I can't fathom, duplicate photos exist with different sizes. In some cases, the one of the dupes was imported and renamed, and the other file will have the original (camera) filename; in other cases, dupes exist with exactly the same name but different sizes. There are more than a few of these--like 15% of some projects.
Either I'm doing something wrong, or the photos are spawning.
Also, I have looked at high magnification with the loupe, and cannot tell any quality difference between these duplicates (such as one file that'sl 3.3MB and another that shows as 6.6MB. That makes no sense.
Using Aperture 3 with (nearly all) managed files.
Would appreciate any help--thanks!
Aperture 3, OS X Mavericks (10.9.2)