Aperture won't "quit" and processing very slowly
I'm running Aperture 3.4.1 on a late 2009, 27 inch iMac with 8GB of RAM.
Since I downloaded version 3.4.1 I'm finding that Aperture is incredibly slow in processing smallish batches of photos (e.g. 60 x 15.5MB RAW files).
I've left it running for 24 hours and find that as soon as I try to edit a photo adjustments don't show up in the preview, because it's either "loading" (and never stops loading) or "processing."
When I try to quit Aperture either by selecting Quit or the little x in the top left of the window, nothing happens. And yet, I'm not getting any indication that Aperture is "not responding" if I open Force Quit or the Activity Monitor.
Very frustrating, as I'm trying to edit some photos for family member, and can't really do a thing.
My library is 421GB and not referenced (maybe that's part of the problem; I don't know)
Any sage advice will be appreciated.
cheers,
Nick