I used to work for OCR as a creative arts clerical officer. One of the first proper graduate jobs I ever had! I did all the administrative skivvy jobs to ensure exam papers were ready for print; things like copyright permissions, liaising with artists and (ex-) teachers who wrote the paper etc.
Hearing about the recent GCSE music exam paper blunder brought back memories. It was quite fascinating to witness the development of the exam papers, but filling out spreadsheets to update the refinements: really boring!!
There was quite a discussion on the TES forum.
How on earth are OCR going to rectify the problem? They can’t make the students retake the exam!