Hmmm. There might be a problem then. I would keep working with her and maybe bring it up with the second grade teacher at open house.
I've tried so many rewards!!!! IceCream, her tablet, going outside, watching tv!! Everything I can think of!! She was only with her first grade teacher for a month because we moved!
I would try doing a reward system with her. Give her some kind of goals and continue to work with her. I'm sure she can read, a teacher would have retained her if not. Maybe she just doesn't have the correct motivation to do it in the summer.
I know!!! Any advice!? She hasn't been outside to play with any friends half her summer vacation I've tooken her tablet away it's been reading and headaches non stop!!!
I have a degree in early childhood education and that sounds like something might be off. A child should be reading in first grade.