Diabetics need to be aware that certain lots of Abbott's FreeStyle Libre 3 and Libre 3 Plus continuous glucose monitors have been found to give incorrectly low readings. At least 7 deaths and 860 injuries have been tied to the devices thus far.

If you use one of these devices, Abbott will replace it with a fixed one for free. But you have to apply to get a replacement.

https://www.nbcnews.com/news/us-news/diabetes-abbott-glucose-monitors-alarmed-recall-linked-deaths-rcna260615

Diabetics who rely on Abbott glucose monitors are alarmed by recall linked to 7 deaths

A manufacturing problem in millions of Abbott glucose sensors for diabetes patients has been tied to at least seven deaths and hundreds of injuries worldwide.

NBC News

You can check to see if your FreeStyle Libre 3 or 3 Plus glucose monitor is among those affected by the recall, and apply for a free replacement if it is, here.

https://www.freestylecheck.com/

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@jalefkowit Curious if this is a hardware or software fault, how they discovered the problem, etc.

@arclight @jalefkowit sounds like a hardware fault since it was isolated to sensors from one of three production lines.

they're a bit short on specifics