Hi James, had something similar happen to me on my D700. It was odd since the image would show on the screen after the shot but would not be on the card. I noticed the last time it happened that the CF light stayed on after the shot, and as long as it was on the card would not record any shots. I assume the buffer got "stuck" and wasn't able to write the file or clear. Didn't think to check the card and try a recovery to see what was on it.
I made it a habit to format the card at the beginning of the shoot, and haven't had this show up again...which may be only coincidence.
- Jerry_ likes this