Been cleaning the camera body and lens contacts. Sometimes the problem goes away, sometimes it doesn't. I'm feeling unhappy because this is the DSLR failing me at a crucial time like this.
But in better times, these are some of the pictures it has been instrumental in producing.
And now, this is getting to be a drag. It can still take pictures, just that this randomly occurs and the only way to resolve it is to reboot the whole camera.