They have 3 other older beardies and they didn't go into brumation.

She called the breeders she purchased her from when her appetite started slowing down and she became kinda crabby at the first of October. He told her that there was no need to bring her in because he thought it sounded like she was just going into brumation. He also said that it was more common for the younger dragons to go through it than the older ones.

They also have a water dragon. There is a small possibility that he has a RI (he has a vet appt this week). If it turns out that he does, could it be possible that it was transferred to her while she was being handled and nobody noticed any typical symptoms because she was asleep?

She is devastated over losing her baby. I am just trying to help her look into what went wrong so that they can prevent it from happening again if possible. All 3 other dragons seem healthy and have 2 different lights, one for heat and the other for UVB.