Has anyone here been sent back to the airline ticket counter for a CAT VID check? I've not seen something like this before. The closest I came to this was when I had done a same day flight change a few minutes before the TDC. The TSO at the TDC saw my original flight details on the screen, not my new flight information, but I wasn't sent back to the ticket counter.
In this situation the OP had booked the flight the night before and had flown on a similar itinerary the other week without any issues.