My last attempt at grafting starting off good and ended bad. I made a cell starter from nurse bees from 2 different colonies. It was a 5 frame nuc with the screen around the bottom for ventilation and an extra 3" space for the screen. I made the starter overflowing with bees. Honey and pollen frames in the starter. No brood in the starter. Fed the bees. Grafted 10 cells. All 10 were started. 24 hours after the graft, moved cells to a finisher colony. Fed the bees until cells were capped even though they only took about 1/4 of a mason jar in 4 days then i removed the sugar water. This hive had a deep brood box with capped brood. Then a super with capped brood, then a super with open brood on top. Located queen place her below a queen excluder which included that deep and super with capped brood. Only the super with open brood was above the excluder. No queen cells noted. Place the graft in with the 10 started cells in it on day 5 (1 day after graft). Then on day 8 (4 days after graft) I had 9 nice looking capped queen cells. Now on day 12 (8 days after the graft) all but 2 cells are tore down. They were not opened from the side. I checked the super above the excluder for queen, eggs and queen cells with none found. Any ideas as to why the bees are tearing down the cells? Is the super above the excluder too close to the brood? Does the cell finisher above the excluder need to be larger than a super? Any ideas are welcome! Thank you!