Your mess came because you did not follow the old advice - move your hive
less than three feet or more than three miles.  In between those
distances your bees become confused.... well you know that now.
 
If this is a recent move, I would move your nuc back to the old
position. Before you move it 15 feet, first move it more than three
miles... wait for six weeks and move it back.  Otherwise move it a couple
of feet each week for a couple of months.
 
I had the same problem with a swarm that moved into a trap and I moved
across the yard...  in just three days the swarm had established the trap
location as home.  I lost a couple of handfuls of bees.
 
Larry Krengel
Marengo, IL  USA
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