Here’s another glitch/bug with the Canon EOS-1DX (and shared by the 5D Mark III):
Immediately after creating an image and during the time in which it automatically appears on the camera’s display, if you zoom in to check the focus, then try to scroll to a neighbouring image, the camera will remain locked on the image just captured.
I’ve posted my findings in the TechTalk section: Canon EOS-1DX and EOS-5D Mark III image review glitch explained