I recently hived a swarm. I put in a frame of brood which is supposed to help them stick around. I always do this. Maybe it helps but I lost one this year that had a frame of brood. Anyway I checked this hived swarm after 3 days and saw eggs. I was excited because it seemed like there was no queen when I collected the swarm. A couple of days later there was multiple eggs in cells and drone brood sticking out of worker cells. There were laying workers (I doubt you will find one single laying worker) even with a frame of brood. It pissed me off. I put them onto drawn comb and combined them with a queenright hive. That queen has since disappeared. I don't see any sign of any laying workers so I'll put another queen in soon.
Good luck.
Good luck.