I have created a 6 photo contact sheet and wish to have the caption field appear as a label below each photo in the grid. The 1st photo went ok, 2nd photo accepted caption but appeared on the incorrect photo when moved from library to print view. I have deleted the captions and reentered them and still incorrect.
Try closing LR and then reopen. If the problem persists post a screenshot in the Print module with captions on all six pictures and explain what's wrong.