April 30th, 2010
I’m a big fan of the aperture programs, but this is a really nasty bug. Sometimes aperture 3 corrupts PNG files upon importing. If you frequently delete your originals after importing into aperture, you are at high risk of losing your data forever.
My png files that were corrupted were originally created by Photoshop and as the picture shows are accurately viewed in OS X Preview.
Here’s an example image that imports incorrectly — original png