Mine are doing good over here, even the younger grow-out's. I think the hens must be getting done with the molting, because I found more eggs than has been normal lately out there today.
Have you tried doing the cayenne pepper thing that they say work's to help get them to start laying egg's again yet? I just found the thread about it here: https://www.backyardchickens.com/threads/cayenne-pepper-it-really-gets-those-hens-laying.124837/