I just tried mine, I had to change the setup to allow all 61 points, and then it worked like your top image with just the gray dots flashing. My 24-70 was the same way.
If you have enabled all AF points, try a camera reset. Sometimes a 3rd party lens can play havoc when a Canon lens is subsequently mounted. I've had to reset my camera for that issue. Third party lenses tell the camera that a Canon lens is mounted, and then the trouble begins if you try to mount the same Canon lens as the 3rd party was emulating. If resetting the camera doesn't fix it, and the obvious contact cleaning, then your lens may have a problem.
OOPS, I have the "L" version. The non L works as stated.