she lays into emergency queen cells.
I heard from one queen seller that inseminated queen are often violated by inseminating act and that may be the case. When hive and queen notice that they try to raise new queen as soon as possible.
Last summer I bought a queen. I did some eggs. I suppose that queen got nosema, because it's abdomen was very swollen.
When I have bought queens from Italy, most of those cases bees began to raise new queen. I think that they are viloted during queen's long journey.
It is very slow proces to get a new queen into the hive from egg. It takes over 3 weeks before the new one lays eggs. It is better cast away and get a new one. I do not know if your queen seller gives a new one without payment.