The 13th of this month I grafted 5 cell cups and put them into a nuc that had a laying worker as a test, and posted the question about them making queen cells on here. Well they took to it and everything looked good for several days and they capped on schedule. I then left one behind to see if it would stop the laying worker and was chewed open way to early to have emerged. I put one in a freshly made nuc and thought she would emerge the 24th or 25th. I checked today and still capped, upon real close inspection there was nothing in it. Any thoughts on this?