Might want to confine them to the coop for a few days.......re-establish the habit of laying in the coop nests.
Free range birds sometimes need to be 'trained'(or re-trained) to lay in the coop nests, especially new layers. Leaving them locked in the coop for 2-3 days can help 'home' them to lay in the coop nests. They can be confined to coop 24/7 for a few days to a week, or confine them at least until mid to late afternoon. You help them create a new habit and they will usually stick with it.