I have Aperture 3.4.3.
Originally, I got a CD version which I upgraded to 3.4.3.
It worked perfectly well for years since I got it and I had no problem with the last version (3.4.3, I mean) until a few weeks ago.
I have it installed on my iMac and on my MacBook Pro.
I've worked with the photostream without any problem but lately (I would say early in march), I started to have problems with Aperture on my iMac.
I realized that whenever I tried to make the photostream work, it crashed Aperture. The only way out is to force the application to quit. And when I launch Aperture again, it crahes immediately. It seems my Aperture Library is corrupted.
So, I uninstalled Aperture with AppCleaner and started the installation from scratch (CD and then upgrades from iTunes).
No more success
So, I started Aperture with a brand new "empty" Aperture Library and it launches without any problem as long as I don't try to use photostream.
In the OSX Preference Panel, Photostream is checked (only for my own stream since I don't share my pictures with others). And again, it corrupts my Library as soon as I try to connect photostream in Aperture.
When I use a previous version of my Aperture Library (saved with Time Machine) I have a collection of photostreams listed in the left column going back as far as october 2011 but no way to connect again to iCloud without crashing and corrpting my Library.
Two more things:
1) I don't have the same problem on my MacBook Pro (same OSX version - 10.8.3 - and same version of Aperture 3.4.3) and both machines are connected to the same iCloud account.
2) I have the same problem with iPhoto on my iMac and it works perfectly well on my MacBook Pro.
Anyone knows this problem?