Pic # 2 looks like a hole in the bottom of her foot to me.
Or a hard scab core. That's the very definition of an injury or bumble foot, isn't it? (Even though it isn't infected)
How can someone say their animal is limping but not bothered.. The limping IS the sign she's in pain even if she's managing to still act "normal". No one limps for the fun of it. If she acts "off" then she's a target to become chicken dinner. Animals are good at hiding their ailments for exactly that reason. And with chickens.. their own flock may even try to kill them off.
Anyways, I don't mean to sound or be rude.. I realize you ARE here looking for answers and/or help. Please do follow through further with someone who will help you get that foot treated properly.
I'm actually glad to see an injury instead of the dreaded Marek's disease! Here are a couple links for review getting started..
http://www.poultrydvm.com/condition/bumblefoot
https://the-chicken-chick.com/bumblefoot-causes-treatment-warning/
Hope she recovers quickly!