Q: iTunes, iPhoto & Aperture - odd sync issue

Hi all,

I am a user of both iPhoto & Aperture, with unified photo library, and occasionally sync one or more events to my iPhone (rather than syncing all photos automatically).

I've noticed recently a rather odd issue, where iTunes does not seem to be "seeing" my iPhoto library. If I set Aperture to the source, then all my events/projects show up correctly. If I choose iPhoto as the source, 0 photos .

Opening the library directly in either iPhoto or Aperture works just fine - all events and photos present and correct - so the issue appears to be around the link from iPhoto to iTunes - weirdly, given the unified library, Aperture to iTunes seems to be fine.

Whilst I _could_ just sync to Aperture, a) the error bugs me , and I'd like to sort it out, and b) iPhoto is a better manager of events (chronological order etc) so I would prefer to use iPhoto to sync to iPhone, iPad etc.

I'm running Mountain Lion and both Photo apps are up to date. Hopefully some kind soul can assist!?