I just had my first Libre sensor come off early yesterday (just five days into the session). Usually they are difficult to get off at the end, so I’m surprised this one came off!
I called Abbott, they picked up immediately and are sending me a new sensor. I am totally satisfied and happy, as I’d heard that Abbott may not replace sensors as easily as Dexcom, but I had no problems at all. (Also, they didn’t ask me how much I weigh! I always find this really weird and awkward from Dexcom. They say it’s because the FDA requires it, but I’m not even located in the United States.)