Just for clarity Cinnamon Queens are Rhode Island Red X Rhode Island White. Anything crossed with White Leghorn will be white with Black flecks. Also would be white eggs.
IF they free range what is to say they are not laying in another location? are these the only 2 you have. Molt in young chickens like that would be odd, but again these were not spring hatch chick but winter , which could mean they stopped to molt and now with reduced light they wont lay. What...
If you have breed that has broodiness in bloodlines, easiest way is to stop collecting eggs. Most egg production breeds will not go broody. Silkies, bantams all will go freely broody.