So I put a new libre on tonight and it is way off compared to bloods. This happened about 3 units ago on one of my daughters sensors. I emailed Abbott the last time and they fobbed me off with ‘timing’ issues. By the time we I finished email exchanges the sensor had expired. Anyway.. I’ve had this one on for a few hours and it’s consistently showing @2mmol lower than bloods.. anyone else experience this?