There is a thread on the Aperture Forum that has me totally perplexed. A user reports lost image files out of network drive folders when Lion was installed, and separately reports lost image files from the main drive when Aperture v3 was installed.
The reported behavior is so unlikely I would suspect a troll, but the OP seems genuine and has typed a lot of carefully composed description.
I thought maybe someone here might have some insight. RSVP here or at the Aperture thread:
[I posted here because the box is a MBP. Mods please move this thread as necessary. Thanks]