The first queen out will go to the rest of the cells, rip them open and sting them to death.
Do they ever let a drone "queen" hatch out? I had isolated a capped queen cell (built from a queen cup, not worker brood) into a Styrofoam mini mating nuc and waited for it to hatch. I only put a small handful of bees in there, and one or two were probably drones. From the bottom, I could see that the cell had properly hatched, but could never find a queen in the bunch. Still puzzled what might have happened in there. The capped queen cell in my display hive did the same thing. But when I opened my main hive to add those bees back in there, I found that the 3rd queen cell had hatched a real queen. Unfortunately, she never made it back from her mating flight, so my hive is still queenless.If they are drone eggs they will tear down the cells before that happens.
Third year so still learning. I have not had after swarms (that I know of) but how do you have more that one swarm coming from the same hive, did she just miss one or two cells?Yes, the first one out will kill the rest.