I'm running into an odd issue trying to import images into Aperture from my 5d3.
I have my Canon 5d3 running firmware 1.1.3 with the 40mm STM updated to 1.2.0 mounted. Connected to the Mac via a USB cable. Aperture (3.3.2) sees the images on the CF card, but fails when trying to transfer them. Image Capture behaves the same way (seeing images, but failing to transfer them).
If I change lenses to anything other than the 40mm, Aperture transfers work as expected.
Anyone else having issues like this?