I forget how long I have been using G7, say 9 months. About a couple of months ago the green top film is too strongly adhered to the patch. I have to continuously circular press to bet the patch to adhere to my skin more strongly than the green film.
In simpler terms, when I attempt to remove the green film the patch is stuck tightly to the film.
The first time I had this happen was when my Endo gave me 3 sensors around Christmas. They were not expired but definitely older than the sensors from my last order. I assumed the problem was age, but it happens every time. BTW the overpatches need adhesive remover to remove them.