There have been numerous reports of molting in less-than-one-year-olds. Climate change or something in the environment, who knows? But it does sound like your pullet is just experiencing a simple molt, partial or full.
You can feed extra protein to help her nutrition. I feed mackerel to my...
Fourteen hours is optimal for egg production, but I've discovered it's unnecessary because twelve will get the job done.
I'm with Blooie. I no longer supplement light mostly because I want my hens to get their rest and I also believe they benefit from a few months vacation from egg laying...