I have had the same unnice experience. I took too many liberties with my black bees. A buckfasts queen in the "matadero", a disaster.
Usually I splitted a hive, put the young larvae, eggs, queen and old bees in the original location. In the new location a hive with emerging brood and young bees. I have been succesfull when the queen is introduced 24 hours later. This time were 5 hours and I have found, weeks later, many laying bees.