CT10 sensor not assigning to a club anymore and it is new

Ct10 not working for my 5 wood. Only had 3 weeks and was working until a few days ago. Tried to reassign and won’t work. Is it the battery and if so would it be covered, it shouldn’t fail after 2 weeks or is something. Wrong with the actual sensor? Same thing happened for the hybrid the first week, but it did work when reassigned. Should any of this be happening with a new set?