aperture 3.5.1 - unsupported image format - suddenly
hello, i'm a full-time aperture user - i do everything with aperture and some plugins, everything comes straight off a nikon d4, d800 or a d7000 directly into aperture and i work from there.
suddenly, out of the blue after years of no problems, i'm randomly getting the black background, grey triangle, 'unsupported image format' problem at random in my libraries.
images will be there one minute, then suddenly turn to this annoying, useless block - some on images i've already begun editing.
i fail to see how this is possible - i rebuilt my library and it seemed to stop happening for a few minutes, now it's back again.
i've done nothing, to change my system - i'm on auto updates so i'm not sure when it upgraded to 3.5.1
i've avoided adobe for years, but i see no other choice but having to move to lightroom if i can't rely on aperture to work properly.
any suggestions??
cheers
iain