As for the egg she just laid, rough eggs can stem from dehydration, lack of proper nutrients, ailments such as bacterial or viral infections, internal worms can effect the egg shell quality. Here is an article that might help you out... https://www.backyardchickens.com/a/common-egg-quality-problems
However, hens will occasionally lay a funky egg. As long as it does not become a habit, it isn't much to worry about.
Make yourself at home here and we do welcome you to our flock!
Greetings from Kansas, RaptorChicken, and welcome to BYC! You might try posting your question in this thread https://www.backyardchickens.com/f/15/what-breed-or-gender-is-this
There are some smart cookies over there that can help with the ID. Good luck and best wishes!