How long did you leave her in there?I guess she wasn't broody enough. I put her in the new set up and it freaked her out. Broke her broodiness.
When I move them they can take half the day or more to settle back down.
Did you have a good nest set up with fake eggs?
I made this portable floor nest for broodies,
well actually I made it for pullets when I used to keep them separate:
