⠀ Ameraucana not laying

[hawkie95]

My 2 Ameracuanas have stopped laying blue eggs. The sit in next box but all the hens like one box& take turns. Whenever I see one of the Ameracuanas there I check after she leaves nest. Usually there are multiple brown & cream eggs there. Has been a couple of weeks since one layed a blue egg.is this normal? They have been laying about a year now & gave on average an egg a day.