Ameraucana stopped laying

[Ecsnyder]

I have a 15 month old Ameraucana( maybe? She lays light olive) that has stopped laying eggs. She was never a very consistent layer, but it has now been about 6 weeks. She eats, poops, walks, & acts normal. There have been so many coop changes over the last few months; one hen died; we introduced 3 new pullets & at the same time one hen went broody. We decided to let her hatch 2 chicks. They are no longer here. It is summer & has been very hot. Would the coop changes cause her to stop laying & this long? Weather? I was feeding them all flock because of the different ages, but back to layer feed w/ oyster shells in addition. They only get mealworms & other treats at most 2x/week. I did notice that her long tail feathers have either fallen out or been plucked out. No other feather loss. But, she is acting totally normal. I have supplemented with some probiotic in the water & occasional herbal supplements for heat /stress for chickens... But I'm stumped.
We have 8 hens. They have a 4x6 coop & two separate runs over 120 sq ft total. They never hang out inside the coop, so I don't believe it is a space issue.
Any thoughts or tips would b great.

 

[nuthatched]

Easter eggers can be finicky. try switching back to all flock for the protein. She could be slow molting.

 

[Txpollock]

I have the same issue recently except my 18 month old Ameracauna has been a very faithful layer almost daily. She hasn’t layed in 6 days but it has been super hot here. How long would a slow moly last? I haven’t changed food but we did introduce 7 new pullets a couple months ago. She is the largest hen I have and the pullets were hatched 3/30/22. There doesn’t seem to be any issue with her and the others although we seem to be having a pecking order issue with all 7 of the new ones. Lots of pecking and running others off. But if I see it from the ameracuana it’s her running others off and no one being aggressive toward her in my presence. No feed changes either. Any advice would be appreciated.