The only review on Amazon for the 1Dx has a similar incident, and canon changed the camera. He describes shutter lock up after trying to full up the buffer. Unless this is a post from one of you guys
Interesting. That issue sounds nearly identical, though I didn't actually get an error code at all. Mine just completely locked up. And when I checked the error log on the camera, it was empty.
Thanks for posting this, Wilmark.