Hi Leonie,
No I have not been using cleaning applications, like CleanMY Mac.
I wonder ... if I had incorrect linked previews and originals, then what would explain that the Show in Finder work on a preview (and it's duplicate) ?
I doubt that if Aperture can no longer delete the Previews that it necessarily means that we are dealing with an orphaned file since the Show in Finder does locate the file in Finder correctly.
Regardless, I did perform a Rebuild Database to see if that would help.
Same problem : for 2 given identical previews with the same file on disk located by Show in Finder , neither of them are deleted after a Delete Preview.
Anyhow, my ordeal is about trying to clean-up my Aperture library by removing all duplicated previews.
Any hint on how to perform this ?
Thanks